Fast radio burst

File:CHIME-FRBcatalog1.jpg in Galactic coordinates with locations of 474 nonrepeating and 18 repeating (62 bursts) sources from 28 August 2018 to 1 July 2019{{Cite journal|last1=Amiri|first1=Mandana|last2=Andersen|first2=Bridget C.|last3=Bandura|first3=Kevin|last4=Berger|first4=Sabrina|last5=Bhardwaj|first5=Mohit|last6=Boyce|first6=Michelle M.|last7=Boyle|first7=P. J.|last8=Brar|first8=Charanjot|last9=Breitman|first9=Daniela|last10=Cassanelli|first10=Tomas|last11=Chawla|first11=Pragya|date=2021-12-01|title=The First CHIME/FRB Fast Radio Burst Catalog|journal=The Astrophysical Journal Supplement Series|language=en|volume=257|issue=2|page=59|doi=10.3847/1538-4365/ac33ab|arxiv=2106.04352 |bibcode=2021ApJS..257...59C |s2cid=235367793 |issn=0067-0049 |doi-access=free }}]]

The first fast radio burst to be described, the Lorimer Burst FRB 010724, was found in 2007 in archived data recorded by the Parkes Observatory on 24 July 2001. Since then, many FRBs have been found in previously recorded data. On 19 January 2015, astronomers at Australia's national science agency (CSIRO) reported that a fast radio burst had been observed for the first time live, by the Parkes Observatory.{{cite web| title=Cosmic radio burst caught red-handed| url=https://www.ras.org.uk/news-and-press/2578-cosmic-radio-burst-caught-red-handed| website=Royal Astronomical Society| date=19 January 2015| access-date=31 January 2015| archive-url=https://web.archive.org/web/20150324212753/http://www.ras.org.uk/news-and-press/2578-cosmic-radio-burst-caught-red-handed| archive-date=24 March 2015}} Many FRBs have been detected in real time by the CHIME radio telescope since it became operational in 2018, including the first FRB detected from within the Milky Way in April 2020.{{cite journal |url= https://www.nature.com/articles/d41586-018-05908-1 |title=Telescope spots enigmatic fast radio burst |first=Davide |last=Castelvecchi|date=7 August 2018|journal=Nature |doi=10.1038/d41586-018-05908-1 |s2cid=126096641 }}

In January 2025, astronomers discovered radio waves from a galaxy that is about 2-billion light years away from earth and is believed to be more than 11 billion years old.{{Cite web |title=Astronomers discover repeating radio bursts from distant 'dead' galaxy |url=https://abcnews.go.com/International/astronomers-discover-repeating-radio-bursts-distant-dead-galaxy/story?id=118023080 |access-date=2025-01-28 |website=ABC News |language=en}} These FRBs are associated with a galaxy that was believed to be dead.

Fast radio bursts are bright, unresolved (pointsource-like), broadband (spanning a large range of radio frequencies), millisecond flashes found in parts of the sky. Unlike many radio sources, the signal from a burst is detected in a short period of time with enough strength to stand out from the noise floor. The burst usually appears as a single spike of energy without any change in its strength over time. The bursts last for several milliseconds (thousandths of a second). The bursts come from all over the sky, and are not concentrated on the plane of the Milky Way. Known FRB locations are biased by the parts of the sky that the observatories can image.

Many have radio frequencies detected around 1400 MHz; a few have been detected at lower frequencies in the range of 400–800 MHz.{{cite web|url=https://www.space.com/42943-fast-radio-burst-repeater-new-discovery.html|title=Scientists Find 13 Mysterious Deep-Space Flashes, Including 2nd Known 'Repeater'|last=Wall|first=Mike |website=Space.com|date=9 January 2019|language=en|access-date=2019-03-03}} The component frequencies of each burst are delayed by different amounts of time depending on the wavelength. This delay is described by a value referred to as a dispersion measure (DM). This results in a received signal that sweeps rapidly down in frequency, as longer wavelengths are delayed more.

File:Fast Radio Burst Galaxies.jpg

The interferometer UTMOST has put a lower limit of 10,000 kilometers for the distance to the FRBs it has detected, supporting the case for an astronomical, rather than terrestrial, origin (because signal sources on Earth are ruled out as being closer than this limit). This limit can be determined from the fact that closer sources would have a curved wave front that could be detected by the multiple antennas of the interferometer.{{Cite journal |arxiv=1703.10173 |last1=Caleb |first1= M.|author1-link=Manisha Caleb |title=The first interferometric detections of Fast Radio Bursts| journal= Monthly Notices of the Royal Astronomical Society |volume=468 |issue=3 |page=3746 |last2=Flynn |first2= C. |last3=Bailes |first3=M. |last4=Barr |first4=E. D. |last5=Bateman |first5= T. |last6=Bhandari |first6= S.| last7=Campbell-Wilson |first7=D. |last8=Farah |first8= W. |last9=Green |first9= A. J. |last10=Hunstead |first10=R. W. |last11=Jameson| first11= A.| last12=Jankowski |first12=F. |last13=Keane |first13=E. F. |last14=Parthasarathy |first14= A. |last15=Ravi |first15= V. |last16=Rosado |first16=P. A. |last17=van Straten |first17= W. |last18=Venkatraman Krishnan |first18=V. |year=2017 |doi=10.1093/mnras/stx638 |doi-access=free |bibcode=2017MNRAS.468.3746C|s2cid=54836555 }}

Fast radio bursts have pulse dispersion measurements {{Nowrap|> 100 pc cm⁻³}}, much larger than expected for a source inside the Milky Way galaxy{{cite journal |title=Dense magnetized plasma associated with a fast radio burst |journal=Nature |date=24 December 2015 |last1=Masui |first1=Kiyoshi |last2=Lin |first2=Hsiu-Hsien |last3=Sievers |first3=Sievers|display-authors=etal |volume=528 |issue=7583 |pages=523–525 |doi=10.1038/nature15769 |pmid=26633633 |arxiv = 1512.00529 |bibcode = 2015Natur.528..523M|s2cid=4470819 }} and consistent with propagation through an ionized plasma. Furthermore, their distribution is isotropic (not especially coming from the galactic plane);{{rp|fig 3}} consequently they are conjectured to be of extragalactic origin.

Because of the isolated nature of the observed phenomenon, the nature of the source remains speculative. {{As of|2022}}, there is no generally accepted single explanation, although a magnetar has been identified as a possible source. The sources are thought to be a few hundred kilometers or less in size, as the bursts last for only a few milliseconds. Causation is limited by the speed of light, about 300 km per millisecond, so if the sources were larger than about 1000 km, a complex synchronization mechanism would be required for the bursts to be so short. If the bursts come from cosmological distances, their sources must be very energetic.{{cite journal|url=http://www.scientificamerican.com/article/a-brilliant-flash-then-nothing-new-fast-radio-bursts-mystify-astronomers/|title=A Brilliant Flash, Then Nothing: New 'Fast Radio Bursts' Mystify Astronomers|journal=Scientific American|author=Lee Billings|date=9 July 2013}} Extending the technique of measuring pulsar emission region sizes using a scattering screen in the Milky Way, a method to estimate the transverse FRB emission region size using a scattering screen in the host galaxy was formulated in 2024.{{cite journal |last1=Kumar |first1=Pawan |last2=Beniamini |first2=Paz |last3=Gupta |first3=Om |last4=Cordes |first4=James M |title=Constraining the FRB mechanism from scintillation in the host galaxy |journal=Monthly Notices of the Royal Astronomical Society |date=1 January 2024 |volume=527 |issue=1 |pages=457–470 |doi=10.1093/mnras/stad3010|doi-access=free |arxiv=2307.15294 }} Within the same year, a previously recorded burst, FRB 202210122A, was constrained to have an emission region size less than 30,000 km, using this technique.{{cite journal |last1=Nimmo |first1=Kenzie |last2=Pleunis |first2=Ziggy |last3=Beniamini |first3=Paz |last4=Kumar |first4=Pawan |last5=Lanman |first5=Adam E. |last6=Li |first6=D. Z. |last7=Main |first7=Robert |last8=Sammons |first8=Mawson W. |last9=Andrew |first9=Shion |last10=Bhardwaj |first10=Mohit |last11=Chatterjee |first11=Shami |last12=Curtin |first12=Alice P. |last13=Fonseca |first13=Emmanuel |last14=Gaensler |first14=B. M. |last15=Joseph |first15=Ronniy C. |last16=Kader |first16=Zarif |last17=Kaspi |first17=Victoria M. |last18=Lazda |first18=Mattias |last19=Leung |first19=Calvin |last20=Masui |first20=Kiyoshi W. |last21=Mckinven |first21=Ryan |last22=Michilli |first22=Daniele |last23=Pandhi |first23=Ayush |last24=Pearlman |first24=Aaron B. |last25=Rafiei-Ravandi |first25=Masoud |last26=Sand |first26=Ketan R. |last27=Shin |first27=Kaitlyn |last28=Smith |first28=Kendrick |last29=Stairs |first29=Ingrid H. |title=Magnetospheric origin of a fast radio burst constrained using scintillation |journal=Nature |date=January 2025 |volume=637 |issue=8044 |pages=48–51 |doi=10.1038/s41586-024-08297-w|pmid=39743602 |arxiv=2406.11053 |bibcode=2025Natur.637...48N }}

One possible explanation would be a collision between very dense objects like merging black holes or neutron stars.{{cite journal |last1=Totani |first1=Tomonori |title=Cosmological Fast Radio Bursts from Binary Neutron Star Mergers |journal=Publications of the Astronomical Society of Japan |date=25 October 2013 |volume=65 |issue=5 |pages=L12 |doi=10.1093/pasj/65.5.L12|arxiv=1307.4985 |bibcode=2013PASJ...65L..12T|s2cid=119259759 }}{{cite journal |last1=Wang |first1=Jie-Shuang |title=Fast Radio Bursts from the Inspiral of Double Neutron Stars |last2=Yang |first2=Yuan-Pei |last3=Wu |first3=Xue-Feng |last4=Dai |first4=Zi-Gao |last5=Wang |first5=Fa-Yin |journal=The Astrophysical Journal |date=22 April 2016 |volume=822 |issue=1 |pages=L7 |doi=10.3847/2041-8205/822/1/L7|arxiv=1603.02014 |bibcode=2016ApJ...822L...7W|s2cid=119228850 |doi-access=free }} It has been suggested that there is a connection to gamma-ray bursts.{{Cite journal |bibcode=2014ApJ...780L..21Z |title=A Possible Connection between Fast Radio Bursts and Gamma-Ray Bursts |journal=The Astrophysical Journal Letters |volume=780 |issue=2 |page=L21 |author=B. Zhang |date=10 January 2014 |doi=10.1088/2041-8205/780/2/L21 |arxiv=1310.4893|s2cid=50883422 }}{{Cite journal |bibcode=2014MNRAS.441.2433R |title=The birth of black holes: neutron star collapse times, gamma-ray bursts and fast radio bursts |journal=Monthly Notices of the Royal Astronomical Society |volume=441 |issue=3 |pages=2433–2439 |author=V. Ravi |author2=P. D. Lasky |date=20 May 2014 |doi=10.1093/mnras/stu720 |doi-access=free |arxiv=1403.6327|s2cid=119205137 }} Some have speculated that these signals might be artificial in origin, that they may be signs of extraterrestrial intelligence,{{cite web | url=https://www.newscientist.com/article/mg22630153-600-is-this-et-mystery-of-strange-radio-bursts-from-space/ | title=Is this ET? Mystery of strange radio bursts from space | publisher=New Scientist | date=31 March 2015 | access-date=17 September 2015 | author=Scoles, Sarah}}{{cite journal |title=Cosmic radio plays an alien tune |journal=New Scientist |date= 4 April 2015 |last=Scoles |first=Sarah |volume=226 |issue=3015 |pages=8–9 |doi=10.1016/S0262-4079(15)30056-7}}{{cite journal |last1=Lingam |first1=Manasvi |last2=Loeb |first2=Abraham |title=Fast Radio Bursts from Extragalactic Light Sails |journal=The Astrophysical Journal |date=8 March 2017 |volume=837 |issue=2 |pages=L23 |doi=10.3847/2041-8213/aa633e |issn=2041-8213|arxiv=1701.01109|bibcode=2017ApJ...837L..23L|s2cid=46951512 |doi-access=free }} demonstrating veritable technosignatures.{{cite news |last=Loeb |first=Avi |author-link=Avi Loeb |title=An Audacious Explanation for Fast Radio Bursts - It's a long shot, but could at least some of these energy blasts from across the universe come from extraterrestrial civilizations? |url=https://www.scientificamerican.com/article/an-audacious-explanation-for-fast-radio-bursts/ |date=24 June 2020 |work=Scientific American |access-date=10 January 2021 }} Analogously, when the first pulsar was discovered, it was thought that the fast, regular pulses could possibly originate from a distant civilization, and the source nicknamed "LGM-1" (for "little green men").{{cite web |url=https://www.space.com/38916-pulsar-discovery-little-green-men.html |title=Little Green Men? Pulsars Presented a Mystery 50 Years Ago |website=Space.com|date=28 November 2017|author=Calla Cofield |access-date= 10 January 2019}} In 2007, just after the publication of the e-print with the first discovery, it was proposed that fast radio bursts could be related to hyperflares of magnetars.{{Cite arXiv |title=Hyperflares of SGRs as an engine for millisecond extragalactic radio bursts | author=S. B. Popov |author2=K. A. Postnov |eprint= 0710.2006| class=astro-ph |year=2007}}{{cite web|title = Those Blasts of Radio Waves from Deep Space? Not Aliens|url = http://phenomena.nationalgeographic.com/2015/12/02/those-enigmatic-blasts-of-radio-waves-from-deep-space-not-aliens/|archive-url = https://web.archive.org/web/20151208114726/http://phenomena.nationalgeographic.com/2015/12/02/those-enigmatic-blasts-of-radio-waves-from-deep-space-not-aliens/|archive-date = December 8, 2015|website = Phenomena|date = 2 December 2015|access-date = 2015-12-03}} In 2015 three studies supported the magnetar hypothesis.{{cite web|title = Fast Radio Bursts Mystify Experts – for Now| url = http://www.scientificamerican.com/article/fast-radio-bursts-mystify-experts-mdash-for-now1/| website = www.scientificamerican.com|access-date = 2015-12-04}}{{cite arXiv| title = The Arecibo Fast Radio Burst: Dense Circum-burst Medium |eprint= 1511.09137| date = 29 November 2015| first1 = S. R.| last1 = Kulkarni| first2 = E. O.| last2 = Ofek| first3 = J. D.| last3 = Neill|class= astro-ph.HE}} The identification of first FRB from the Milky Way, which originated from the magnetar SGR 1935+2154, indicates that magnetars may be one source of FRB.

Especially energetic supernovae could be the source of these bursts.{{cite journal|title=Flashes in the Night|url=https://www.scientificamerican.com/article/flashes-in-the-night-the-mystery-of-fast-radio-bursts/|first1=Duncan|last1=Lorimer|first2=Maura|last2=McLaughlin|journal=Scientific American|volume=318|issue=4|pages=42–47|date=Apr 2018|doi=10.1038/scientificamerican0418-42|pmid=29557949|bibcode=2018SciAm.318d..42L}} Blitzars were proposed in 2013 as an explanation.

In 2014 it was suggested that following dark matter-induced collapse of pulsars,{{Cite journal|last1=Bramante|first1=Joseph|last2=Linden|first2=Tim|title=Detecting Dark Matter with Imploding Pulsars in the Galactic Center|journal=Physical Review Letters|volume=113|issue=19|doi=10.1103/PhysRevLett.113.191301|bibcode=2014PhRvL.113s1301B|pmid=25415895|page=191301|year=2014|arxiv = 1405.1031|s2cid=13040682}} the resulting expulsion of the pulsar magnetospheres could be the source of fast radio bursts.{{Cite journal|last1=Fuller|first1=Jim|last2=Ott|first2=Christian|title=Dark Matter-induced Collapse of Neutron Stars: A Possible Link Between Fast Radio Bursts and the Missing Pulsar Problem|journal=Monthly Notices of the Royal Astronomical Society: Letters|volume=450|issue=1|doi=10.1093/mnrasl/slv049|pages=L71–L75|year=2015|doi-access=free |bibcode=2015MNRAS.450L..71F|arxiv = 1412.6119|s2cid=34483956}} In 2015 it was suggested that FRBs are caused by explosive decays of axion miniclusters.{{cite journal|author=Tkachev, Igor I.|title=Fast radio bursts and axion miniclusters|journal=JETP Letters|volume=101|issue=1|year=2015|pages=1–6|doi=10.1134/S0021364015010154|arxiv=1411.3900|bibcode=2015JETPL.101....1T|s2cid=73526144}} Another exotic possible source are cosmic strings that produced these bursts as they interacted with the plasma that permeated the early Universe. In 2016 the collapse of the magnetospheres of Kerr–Newman black holes were proposed to explain the origin of the FRBs' "afterglow" and the weak gamma-ray transient 0.4 s after GW 150914.{{Cite journal|last1=Liu|first1=Tong|last2=Romero|first2=Gustavo E.|last3=Liu|first3=Mo-Lin|last4=Li|first4=Ang|journal=The Astrophysical Journal|volume=826|issue=1|doi=10.3847/0004-637x/826/1/82|page=82|year=2016|bibcode=2016ApJ...826...82L|arxiv = 1602.06907 |title=Fast Radio Bursts and Their Gamma-Ray or Radio Afterglows as Kerr–Newman Black Hole Binaries|hdl=11336/25853|s2cid=55258457 |doi-access=free }}{{Cite journal|last=Zhang|first=Bing|journal=The Astrophysical Journal|volume=827|issue=2|doi=10.3847/2041-8205/827/2/l31|pages=L31|year=2016|bibcode=2016ApJ...827L..31Z|arxiv = 1602.04542 |title=Mergers of Charged Black Holes: Gravitational-Wave Events, Short Gamma-Ray Bursts, and Fast Radio Bursts|s2cid=119127313 |doi-access=free }} It has also been proposed that if fast radio bursts originate in black hole explosions, FRBs would be the first detection of quantum gravity effects.{{Cite journal|title=Fast radio bursts and white hole signals |journal=Physical Review D |volume=90 |issue=12 |page=127503 |author=A. Barrau |author2=C. Rovelli |author3=F. Vidotto |name-list-style=amp |year=2014|doi=10.1103/PhysRevD.90.127503 |bibcode=2014PhRvD..90l7503B |arxiv=1409.4031|s2cid=55032600 }} In early 2017, it was proposed that the strong magnetic field near a supermassive black hole could destabilize the current sheets within a pulsar's magnetosphere, releasing trapped energy to power the FRBs.{{Cite journal|last=Zhang|first=Fan|date=7 February 2017|title=Pulsar magnetospheric convulsions induced by an external magnetic field|journal=Astronomy & Astrophysics|language=en|volume=598|issue=2017|pages=A88|doi=10.1051/0004-6361/201629254|issn=0004-6361|arxiv=1701.01209|bibcode=2017A&A...598A..88Z|s2cid=119382997}}

Repeated bursts of FRB 121102 have initiated multiple origin hypotheses.{{cite news|url=https://www.quantamagazine.org/a-cosmic-burst-repeats-deepen%c2%ading-a-mystery-20170418/|title=A Cosmic Burst Repeats, Deepening a Mystery {{!}} Quanta Magazine|newspaper=Quanta Magazine|date=18 April 2017|language=en-US|access-date=2017-04-19}} A coherent emission phenomenon known as superradiance, which involves large-scale entangled quantum mechanical states possibly arising in environments such as active galactic nuclei, has been proposed to explain these and other associated observations with FRBs (e.g. high event rate, repeatability, variable intensity profiles).{{Cite journal |title= Explaining fast radio bursts through Dicke's superradiance|journal= Monthly Notices of the Royal Astronomical Society|volume= 475|issue= 1|page= 514|arxiv= 1710.00401|date = 12 December 2017|first1 = M.|last1 = Houde|first2 = A.|last2 = Mathews|first3 = F.|last3 = Rajabi|doi= 10.1093/mnras/stx3205|doi-access= free|bibcode= 2018MNRAS.475..514H|s2cid= 119240095}} In July 2019, astronomers reported that non-repeating Fast Radio Bursts may not be one-off events, but actually FRB repeaters with repeat events that have gone undetected and, further, that FRBs may be formed by events that have not yet been seen or considered.{{cite news |last=Crane |first=Leah |title=There aren't enough space explosions to explain strange radio bursts |url=https://www.newscientist.com/article/2209850-there-arent-enough-space-explosions-to-explain-strange-radio-bursts/ |date=15 July 2019 |work=New Scientist |access-date=16 July 2019}}{{cite journal |last=Ravi |first=Vikram |title=The prevalence of repeating fast radio bursts |date=15 July 2019 |journal=Nature Astronomy |volume=3 |issue=10 |pages=928–931 |doi=10.1038/s41550-019-0831-y |bibcode=2019NatAs...3..928R |arxiv=1907.06619|s2cid=196622821 }} Additional possibilities include that FRBs may originate from nearby stellar flares.{{cite web |title=Fast Radio Bursts Might Come From Nearby Stars |url=https://www.cfa.harvard.edu/news/2013-30 |website=Harvard-Smithsonian Center for Astrophysics |date=12 December 2013 |access-date=8 February 2020}} A FRB with multiple periodic component peaks lasting over 3 seconds was reported in 2022. A neutron star has been proposed as the origin of this FRB.

Fast radio bursts are named by the date the signal was recorded, as "FRB YYMMDD", with a letter appended to distinguish multiple sources first recorded on the same date.

The name is of the presumed source rather than the burst of radio waves, so repeated or subsequent bursts from the same apparent location (eg, FRB 121102) do not get new date names.

The first FRB detected, the Lorimer Burst FRB 010724, was discovered in 2007 when Duncan Lorimer of West Virginia University assigned his student David Narkevic to look through archival data taken in 2001 by the Parkes radio dish in Australia.{{cite news |last=McKee |first=Maggie |url=https://www.newscientist.com/article/dn12699-extragalactic-radio-burst-puzzles-astronomers/ |title=Extragalactic radio burst puzzles astronomers |work=New Scientist |date=27 September 2007 |access-date=2015-09-18}}

Analysis of the survey data found a 30-jansky dispersed burst which occurred on 24 July 2001,{{cite journal |url=http://www.sciencemag.org/cgi/content/abstract/318/5851/777?ck=nck |title=A Bright Millisecond Radio Burst of Extragalactic Origin |author=D. R. Lorimer |display-authors=4 |author2=M. Bailes |author3=M. A. McLaughlin |author4=D. J. Narkevic |author5=F. Crawford |date=27 September 2007 |access-date=2010-06-23| journal=Science |volume=318| pages=777–780| number=5851| arxiv=0709.4301| doi=10.1126/science.1147532 |pmid=17901298 |bibcode=2007Sci...318..777L |hdl=1959.3/42649|s2cid=15321890 }} less than 5 milliseconds in duration, located 3° from the Small Magellanic Cloud. The reported burst properties argue against a physical association with the Milky Way galaxy or the Small Magellanic Cloud. {{cite journal | doi = 10.1038/nphys2724 | title=No flash in the pan | journal=Nature Physics | date=2013 | volume=9 | issue=8 | page=454 | first=May | last=Chiao|bibcode = 2013NatPh...9..454C| doi-access=free }} The discoverers argue that current models for the free electron content in the Universe imply that the burst is less than 1 gigaparsec distant. The fact that no further bursts were seen in 90 hours of additional observations implies that it was a singular event such as a supernova or merger of relativistic objects. It is suggested that hundreds of similar events could occur every day and if detected could serve as cosmological probes.{{cite web |url=http://www.atnf.csiro.au/news/newsletter/oct07/MSburst.htm |title=A bright millisecond radio burst of extragalactic origin |author=Duncan Lorimer (West Virginia University, US) |display-authors=4 |author2=Matthew Bailes (Swinburne University) |author3=Maura McLaughlin (West Virginia University, US) |author4=David Narkevic (West Virginia University, US) |author5=Fronefield Crawford (Franklin & Marshall College, US) | name-list-style=amp |publisher=Australia Telescope National Facility |date=October 2007 |access-date=2010-06-23}}

File:Pertyon.png event detected at the Parkes Observatory. Peryton events are now known to be caused by the emission from a microwave oven.]]

In 2010 there was a report of 16 similar pulses, clearly of terrestrial origin, detected by the Parkes radio telescope and given the name perytons.{{Cite journal|arxiv=1009.5392 |author1=Sarah Burke-Spolaor |author2=Matthew Bailes |author3=Ronald Ekers |author4=Jean-Pierre Macquart |author5=Fronefield Crawford III |title=Radio Bursts with Extragalactic Spectral Characteristics Show Terrestrial Origins |journal=The Astrophysical Journal |volume=727 |issue=1 |page=18 |date=2010|doi=10.1088/0004-637X/727/1/18 |bibcode = 2011ApJ...727...18B|s2cid=35469082 }} In 2015 perytons were shown to be generated when microwave oven doors were opened during a heating cycle, with detected emission being generated by the microwave oven's magnetron tube as it was being powered off.{{Cite journal|arxiv=1504.02165|title=Identifying the source of perytons at the Parkes radio telescope|date=9 April 2015|bibcode = 2015MNRAS.451.3933P |doi = 10.1093/mnras/stv1242|volume=451|issue=4|journal=Monthly Notices of the Royal Astronomical Society|pages=3933–3940|last1=Petroff|first1=E.|last2=Keane|first2=E. F.|last3=Barr|first3=E. D.|last4=Reynolds|first4=J. E.|last5=Sarkissian|first5=J.|last6=Edwards|first6=P. G.|last7=Stevens|first7=J.|last8=Brem|first8=C.|last9=Jameson|first9=A.|last10=Burke-Spolaor|first10=S.|last11=Johnston|first11=S.|last12=Bhat|first12=N. D. R.|last13=Kudale|first13=P. Chandra S.|last14=Bhandari|first14=S.|doi-access=free |s2cid=118525156}}

In 2015, FRB 110523 was discovered in archival data collected in 2011 from the Green Bank Telescope. It was the first FRB for which linear polarization was detected (allowing a measurement of Faraday rotation). Measurement of the signal's dispersion delay suggested that this burst was of extragalactic origin, possibly up to 6 billion light-years away.

Victoria Kaspi of McGill University estimated that as many as 10,000 fast radio bursts may occur per day over the entire sky.{{cite web|url=http://www.mpifr-bonn.mpg.de/pressreleases/2014/8|title=Radio-burst discovery deepens astrophysics mystery|date=10 July 2014|publisher=Max Planck Institute}}

{{split section|FRB 121102|date=May 2023}}

An observation in 2012 of a fast radio burst (FRB 121102) in the direction of Auriga in the northern hemisphere using the Arecibo radio telescope confirmed the extragalactic origin of fast radio pulses by an effect known as plasma dispersion.

In November 2015, astronomer Paul Scholz at McGill University in Canada, found ten non-periodically repeated fast radio pulses in archival data gathered in May and June 2015 by the Arecibo radio telescope.{{cite news |last=Chipello |first=Chris |url=https://www.mcgill.ca/newsroom/channels/news/mysterious-cosmic-radio-bursts-found-repeat-259440 |title=Mysterious cosmic radio bursts found to repeat |work=McGill University News |date=2 March 2016 |access-date=2016-03-05}} The ten bursts have dispersion measures and sky positions consistent with the original burst FRB 121102, detected in 2012. Like the 2012 burst, the 10 bursts have a plasma dispersion measure that is three times larger than possible for a source in the Milky Way Galaxy.

The team thinks that this finding rules out self-destructive, cataclysmic events that could occur only once, such as the collision between two neutron stars.{{cite news |last=Woo |first=Marcus |url=http://www.bbc.com/earth/story/20160606-there-are-weird-bursts-of-energy-coming-from-deep-space |title=There a re weird bursts of energy coming from deep space |work=BBC News |date=7 June 2016 |access-date=2016-06-07}} According to the scientists, the data support an origin in a young rotating neutron star (pulsar), or in a highly magnetized neutron star (magnetar),{{Cite journal| last1=Spitler| first1=L. G.| last2=Scholz| first2=P.| last3=Hessels| first3=J. W. T.| last4=Bogdanov| first4=S.| last5=Brazier| first5=A.| last6=Camilo| first6=F.| last7=Chatterjee| first7=S.| last8=Cordes| first8=J. M.| last9=Crawford| first9=F.| date=2016-03-02| title=A repeating fast radio burst| journal=Nature| language=en| volume=531| issue=7593| doi=10.1038/nature17168| issn=1476-4687|arxiv = 1603.00581 |bibcode = 2016Natur.531..202S| pages=202–205| pmid=26934226| s2cid=205247994}}{{cite web|url=http://news.nationalgeographic.com/2016/03/160302-fast-radio-burst-discovery-magnetar-repeated-waves/|title=Astronomers Discover a New Kind of Radio Blast From Space|last=Drake|first=Nadia|author-link=Nadia Drake|date=2 March 2016|website=National Geographic News|archive-url=https://web.archive.org/web/20161217091538/http://news.nationalgeographic.com/2016/03/160302-fast-radio-burst-discovery-magnetar-repeated-waves/|archive-date=17 December 2016|access-date=2016-03-03}} [https://www.research.manchester.ac.uk/portal/en/publications/the-repeating-fast-radio-burst-frb-121102(2a04ea9f-539e-4ebb-a675-725f3d2ca484).html Alt URL] or from highly magnetized pulsars travelling through asteroid belts,{{Cite journal |author=Z. G. Dai |author2=J. S. Wang |author3=X. F. Wu |author4=Y. F. Huang |date=2016-03-27|title=Repeating Fast Radio Bursts from Highly Magnetized Pulsars Travelling through Asteroid Belts|journal=The Astrophysical Journal|volume=829|issue=1|page=27|arxiv=1603.08207|bibcode=2016ApJ...829...27D|doi=10.3847/0004-637X/829/1/27|s2cid=119241082 |doi-access=free }} or from an intermittent Roche lobe overflow in a neutron star-white dwarf binary.{{Cite journal|last1=Gu|first1=Wei-Min|last2=Dong|first2=Yi-Ze|last3=Liu|first3=Tong|last4=Ma|first4=Renyi|last5=Wang|first5=Junfeng|title=A Neutron Star-White Dwarf Binary Model for Repeating Fast Radio Burst 121102|journal=The Astrophysical Journal|volume=823|issue=2|doi=10.3847/2041-8205/823/2/l28|pages=L28|year=2016|bibcode=2016ApJ...823L..28G |arxiv=1604.05336|s2cid=118574692 |doi-access=free }}

On 16 December 2016 six new FRBs were reported in the same direction (one having been received on 13 November 2015, four on 19 November 2015, and one on 8 December 2015).{{rp|Table 2}} {{As of|2019|1}} this is one of only two instances in which these signals have been found twice in the same location in space. FRB 121102 is located at least 1150 AU from Earth, excluding the possibility of a human-made source, and is almost certainly extragalactic in nature.

As of April 2018, FRB 121102 is thought to be co-located in a dwarf galaxy about three billion light-years from Earth with a low-luminosity active galactic nucleus, or a previously unknown type of extragalactic source, or a young neutron star energising a supernova remnant.{{cite news |last=Overbye |first=Dennis |author-link=Dennis Overbye |title=Radio Bursts Traced to Faraway Galaxy, but Caller Is Probably 'Ordinary Physics' |url=https://www.nytimes.com/2017/01/04/science/fast-radio-burst-galaxy.html |date=4 January 2017 |work=The New York Times |access-date=4 January 2017}}{{Cite news |last=Strauss |first=Mark |title=Strange Radio Bursts Seen Coming From a Galaxy Far, Far Away |url=http://news.nationalgeographic.com/2017/01/fast-radio-bursts-galaxy-frb-121102-black-hole-space-science |archive-url=https://web.archive.org/web/20170105180656/http://news.nationalgeographic.com/2017/01/fast-radio-bursts-galaxy-frb-121102-black-hole-space-science/ |archive-date=January 5, 2017 |date=4 January 2017 |work=National Geographic Society |access-date=4 January 2017}}{{Cite journal|last1=Marcote|first1=B.|last2=Paragi|first2=Z.|last3=Hessels|first3=J. W. T.|last4=Keimpema|first4=A.|last5=Langevelde|first5=H. J. van|last6=Huang|first6=Y.|last7=Bassa|first7=C. G.|last8=S. Bogdanov|last9=Bower|first9=G. C.|date=2017-01-01|title=The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales|journal=The Astrophysical Journal Letters|language=en|volume=834|issue=2|pages=L8|doi=10.3847/2041-8213/834/2/L8|issn=2041-8205|bibcode=2017ApJ...834L...8M |arxiv = 1701.01099|s2cid=28031230 |doi-access=free }}{{cite web|url=https://www.science.org/content/article/mysterious-radio-bursts-originate-outside-milky-way|title=Mysterious radio bursts originate outside the Milky Way|website=Science |author=Govert Schilling|date=4 January 2017}}{{cite web |url=https://www.seti.org/frb-121102-radio-calling-cards-distant-civilization |title=FRB 121102: Radio Calling Cards from a Distant Civilization? |website=SETI Institute |date=23 April 2018 |author=Seth Shostak |access-date=9 January 2019 |author-link=Seth Shostak}}

On 26 August 2017, astronomers using data from the Green Bank Telescope detected 15 additional repeating FRBs coming from FRB 121102 at 5 to 8 GHz. The researchers also noted that FRB 121102 is presently in a "heightened activity state, and follow-on observations are encouraged, particularly at higher radio frequencies".{{cite web |author=Gajjar, Vishal|display-authors=etal|title=FRB 121102: Detection at 4–8 GHz band with Breakthrough Listen backend at Green Bank |url=http://www.astronomerstelegram.org/?read=10675 |date=29 August 2017 |website=Astronomer's Telegram |access-date=30 August 2017}}{{cite news |last=Osbourne |first=Hannah |title=FRBS:Repeating Radio Signals Coming From Distant Galaxy Detected By Astronomers |url=http://www.newsweek.com/frb-fast-radio-bursts-deep-space-breakthrough-listen-657144 |date=30 August 2017 |work=Newsweek |access-date=30 August 2017}}{{cite news |last=Wilford |first=Greg |title=Mysterious signals from distant galaxy spark row over whether they could be from aliens

|url=https://www.independent.co.uk/news/science/stephen-hawking-breakthrough-listen-radio-waves-signals-aliens-national-geographic-nadia-drake-a7925531.html |date=2 September 2017 |work=The Independent |access-date=2 September 2017}} The waves are highly polarized and undergoes Faraday rotation, meaning "twisting" transverse waves, that could have formed only when passing through hot plasma with an extremely strong magnetic field.[https://www.space.com/39340-researchers-probe-origin-fast-radio-bursts.html Researchers Probe Origin of Superpowerful Radio Blasts from Space]. Charles Qoi, Space.com. 10 January 2018. This rotation of polarized light is quantified by Rotation Measure (RM). FRB 121102's radio bursts have RM about 500 times higher than those from any other FRB to date. Since it is a repeating FRB source, it suggests that it does not come from some one-time cataclysmic event; so one hypothesis, first advanced in January 2018, proposes that these particular repeating bursts may come from a dense stellar core called a neutron star near an extremely powerful magnetic field, such as one near a massive black hole, or one embedded in a nebula.[https://www.bbc.com/news/science-environment-42614401 Light shed on mystery space radio pulses]. Paul Rincon, BBC News. 10 January 2018.

In April 2018, it was reported that FRB 121102 consisted of 21 bursts spanning one hour.{{Cite journal|last1=Gajjar|first1=V.|last2=Siemion|first2=A. P. V.|last3=Price|first3=D. C.|last4=Law|first4=C. J.|last5=Michilli|first5=D.|last6=Hessels|first6=J. W. T.|last7=Chatterjee|first7=S.|last8=Archibald|first8=A. M.|author8-link=Anne Archibald|last9=Bower|first9=G. C.|date=2018-08-06|title=Highest-frequency detection of FRB 121102 at 4–8 GHz using the Breakthrough Listen Digital Backend at the Green Bank Telescope|arxiv=1804.04101|journal=The Astrophysical Journal|volume=863|issue=1|page=2|doi=10.3847/1538-4357/aad005|issn=1538-4357|bibcode=2018ApJ...863....2G|s2cid=52992557 |doi-access=free }} In September 2018, an additional 72 bursts spanning five hours had been detected using a convolutional neural network.{{Cite journal|last1=Zhang|first1=Yunfan Gerry |last2=Gajjar |first2=Vishal |last3=Foster |first3=Griffin |last4=Siemion |first4=Andrew |last5=Cordes |first5=James |last6=Law |first6=Casey |last7=Wang |first7=Yu |date=9 September 2018|title=Fast Radio Burst 121102 Pulse Detection and Periodicity: A Machine Learning Approach|journal=The Astrophysical Journal |volume=866 |issue=2 |page=149 |arxiv=1809.03043|doi=10.3847/1538-4357/aadf31 |bibcode=2018ApJ...866..149Z|s2cid=117337002 |doi-access=free }}{{cite news |last=Wall |first=Mike |title=Mysterious Light Flashes Are Coming from Deep Space, and AI Just Found More of Them |url=https://www.space.com/41775-breakthrough-listen-fast-radio-bursts.html |date=11 September 2018 |work=Space.com |access-date=11 September 2018}}{{cite news |last=Starr |first=Michelle |title=Astronomers Have Detected an Astonishing 72 New Mystery Radio Bursts From Space – We still have no idea what these signals are|url=https://www.sciencealert.com/72-new-fast-radio-burst-signals-frb-121102-breakthrough-listen-neural-network-machine-learning |date=11 September 2018 |work=ScienceAlert.com |access-date=11 September 2018}} In September 2019, more repeating signals, 20 pulses on 3 September 2019, were reported to have been detected from FRB 121102 by the Five-hundred-meter Aperture Spherical Telescope (FAST).{{cite news |last=Nield |first=David |title=Giant Radio Telescope in China Just Detected Repeating Signals From Across Space |url=https://www.sciencealert.com/that-giant-radio-telescope-in-china-has-now-detected-a-repeating-frb |date=10 September 2019 |work=ScienceAlert.com |access-date=10 September 2019}} In June 2020, astronomers from Jodrell Bank Observatory reported that FRB 121102 exhibits the same radio-burst behavior ("radio bursts observed in a window lasting approximately 90 days followed by a silent period of 67 days") every 157 days, suggesting that the bursts may be associated with "the orbital motion of a massive star, a neutron star or a black hole".{{cite news |author=University of Manchester |title=Jodrell Bank leads international effort which reveals 157 day cycle in unusual cosmic radio bursts |url=https://www.eurekalert.org/pub_releases/2020-06/uom-jbl060520.php |date=7 June 2020 |work=EurekAlert! |access-date=7 June 2020 }} Subsequent studies by FAST of further activity, consisting of 12 bursts within two hours observed on 17 August 2020, supports an updated refined periodicity between active periods of 156.1 days.{{cite news |author=Wang, Pei |display-authors=et al. |title=ATel #139595: FRB121102 is active again as revealed by FAST |url=http://www.astronomerstelegram.org/?read=13959 |date=21 August 2020 |work=The Astronomer's Telegram |access-date=22 August 2020 }} Related studies have been reported in October 2021.{{cite news |last=Karlis |first=Nicole |title=A mysterious and powerful radio signal from space is repeating itself - A rare repeating fast radio burst signal is helping astronomers to probe the mysterious phenomenon in more depth |url=https://www.salon.com/2021/10/18/fast-radio-burst-repeating-study/ |date=18 October 2021 |work=Salon |access-date=19 October 2021 }} Further bursts, at least 300, were detected by FAST in August and September 2022.{{cite news |author=Wang, Pei |title=ATel #15619: FRB 20121102A is active again with significantly smaller DM as revealed by FAST |url=https://www.astronomerstelegram.org/?read=15619 |date=19 September 2022 |work=The Astronomer's Telegram |access-date=19 September 2022 }} Further related studies were reported in April 2023.{{cite news |author=Feng, Yi |display-authors=et al. |title=ATel #15980: A highly depolarized burst from FRB 20121102A with significantly smaller RM as revealed by FAST |url=https://www.astronomerstelegram.org/?read=15980 |date=7 April 2023 |work=The Astronomer's Telegram |access-date=7 April 2023 }} Erratum to ATel #15980 - We report a typo of ATel #15980. The average decrease of RM should be roughly 1.02 x 104 rad m-2 per year since 2019. => https://www.astronomerstelegram.org/?read=15981 (8 April 2023) In July 2023 19 new burst were reported from existing observations of 121102A that were taken by the Green Bank Telescope, eight of which were extremely short, independent, bursts lasting between 5 and 15 microseconds, the shortest so far detected.{{Cite web |date=2023-07-24 |title=Astronomers announce haul of the shortest fast radio bursts ever discovered |url=https://physicsworld.com/astronomers-announce-haul-of-the-shortest-fast-radio-bursts-ever-discovered/ |access-date=2023-07-31 |website=Physics World |language=en-GB}}

In 2013, four bursts were identified that supported the likelihood of extragalactic sources.{{Cite journal|title=A Population of Fast Radio Bursts at Cosmological Distances |author=D. Thornton |display-authors=4 |author2=B. Stappers |author3=M. Bailes |author4=B. Barsdell |author5=S. Bates |author6=N. D. R. Bhat |author7=M. Burgay |author8=S. Burke-Spolaor |author9=D. J. Champion |author10=P. Coster |author11=N. D'Amico |author12=A. Jameson |author13=S. Johnston |author14=M. Keith |author15=M. Kramer |author16=L. Levin |author17=S. Milia, C. Ng |author18=A. Possenti |author19=W. van Straten |journal=Science |date=5 July 2013 |arxiv=1307.1628|bibcode = 2013Sci...341...53T |doi = 10.1126/science.1236789 |pmid=23828936 |volume=341 |issue=6141 |pages=53–6|s2cid=206548502 }}

In 2014, FRB 140514 was caught 'live' and was found to be 21% (±7%) circularly polarised.

On 18 April 2015, FRB 150418 was detected by the Parkes observatory and within hours, several telescopes including the Australia Telescope Compact Array caught an apparent radio "afterglow" of the flash, which took six days to fade.{{cite news |last=Webb |first=Jonathan |url=https://www.bbc.com/news/science-environment-35645370 |title=Radio flash tracked to faraway galaxy |work=BBC News |date=24 February 2016 |access-date=2016-02-24}}{{cite journal |title=The host galaxy of a fast radio burst |journal=Nature |date=25 February 2016 |last1=Keane |first1=E. F. |last2=Johnston |first2=S. |volume=530 |issue=7591 |pages=453–461 |doi=10.1038/nature17140 |arxiv=1602.07477 |bibcode=2016Natur.530..453K |display-authors=etal |pmid=26911781|s2cid=205247865 }}{{cite news |last=Plait |first=Phil |url=http://www.slate.com/blogs/bad_astronomy/2016/02/24/fast_radio_bursts_finally_identified_as_being_very_far_away.html |title=Astronomers Solve One Mystery of Fast Radio Bursts and Find Half the Missing Matter in the Universe |work=Bad Astronomy – Slate |date=24 February 2016 |access-date=2016-02-24}} The Subaru Telescope was used to find what was thought to be the host galaxy and determine its redshift and the implied distance to the burst.{{cite news |url=http://spaceref.com/astronomy/new-fast-radio-burst-discovery-finds-missing-matter-in-the-universe.html |archive-url=https://archive.today/20161228150542/http://spaceref.com/astronomy/new-fast-radio-burst-discovery-finds-missing-matter-in-the-universe.html |url-status=dead |archive-date=December 28, 2016 |title=New Fast Radio Burst Discovery Finds Missing Matter in the Universe |work=Subaru Telescope |publisher=Space Ref |date=24 February 2016 |access-date=2016-02-25 }}

However, the association of the burst with the afterglow was soon disputed,{{cite web| url=http://newton.cx/~peter/wp/wp-content/uploads/2016/02/note-rev1.pdf| title=Cosmological Origin for FRB 150418? Not So Fast}}{{cite web|url=http://www.astronomerstelegram.org/?read=8752|title=ATel #8752: Radio brightening of FRB 150418 host galaxy candidate|website=ATel|access-date=2016-03-03}}{{cite web|url=http://phenomena.nationalgeographic.com/2016/02/29/that-blast-of-radio-waves-produced-by-colliding-dead-stars-not-so-fast/|archive-url=https://web.archive.org/web/20160301104532/http://phenomena.nationalgeographic.com/2016/02/29/that-blast-of-radio-waves-produced-by-colliding-dead-stars-not-so-fast/|archive-date=March 1, 2016|title=That Blast of Radio Waves Produced By Colliding Dead Stars? Not So Fast| last=says| first=Franko| website=Phenomena| access-date=2016-03-03|date=2016-02-29}} and by April 2016 it was established that the "afterglow" originated from an active galactic nucleus (AGN) that is powered by a supermassive black hole with dual jets blasting outward from the black hole.{{cite news |url=http://spaceref.com/astronomy/fast-radio-burst-afterglow-was-actually-a-flickering-black-hole.html |title=Fast Radio Burst Afterglow Was Actually a Flickering Black Hole |work=Harvard-Smithsonian Center for Astrophysics (HSCFA) |publisher=SpaceRef |date=April 4, 2016 |access-date=2016-04-05 |archive-date=2023-03-24 |archive-url=https://web.archive.org/web/20230324161816/https://spaceref.com/science-and-exploration/fast-radio-burst-afterglow-was-actually-a-flickering-black-hole/ |url-status=dead }} It was also noted that what was thought to be an afterglow did not fade away as would be expected, supporting the interpretation that it originated in the variable AGN and was not associated with the fast radio burst.

The upgraded Molonglo Observatory Synthesis Telescope (UTMOST), near Canberra (Australia), reported finding three more FRBs.{{Cite web|url=https://cosmosmagazine.com/space/born-again-australian-telescope-solves-mystery-of-intergalactic-fast-radio-bursts/|title=Born-again Australian telescope solves mystery of intergalactic Fast Radio Bursts|date=April 5, 2017|website=cosmosmagazine.com}} A 180-day three-part survey in 2015 and 2016 found three FRBs at 843 MHz. Each FRB located with a narrow elliptical 'beam'; the relatively narrow band 828–858 MHz gives a less precise dispersion measure (DM).

A short survey using part of Australian Square Kilometre Array Pathfinder (ASKAP) found one FRB in 3.4 days. FRB170107 was bright with a fluence of 58±6 Jy ms.{{cite journal|last1=Bannister|first1=K. W.|last2=Shannon|first2=R. M.|last3=Macquart|first3=J.-P.|last4=Flynn|first4=C.|last5=Edwards|first5=P. G.|last6=O'Neill|first6=M.|last7=Osłowski|first7=S.|last8=Bailes|first8=M.|last9=Zackay|first9=B.|last10=Clarke|first10=N.|last11=D'Addario|first11=L. R.|last12=Dodson|first12=R.|last13=Hall|first13=P. J.|last14=Jameson|first14=A.|last15=Jones|first15=D.|last16=Navarro|first16=R.|last17=Trinh|first17=J. T.|last18=Allison|first18=J.|last19=Anderson|first19=C. S.|last20=Bell|first20=M.|last21=Chippendale|first21=A. P.|last22=Collier|first22=J. D.|last23=Heald|first23=G.|last24=Heywood|first24=I.|last25=Hotan|first25=A. W.|last26=Lee-Waddell|first26=K.|last27=Madrid|first27=J. P.|last28=Marvil|first28=J.|last29=McConnell|first29=D.|last30=Popping|first30=A.|last31=Voronkov|first31=M. A.|last32=Whiting|first32=M. T.|last33=Allen|first33=G. R.|last34=Bock|first34=D. C.-J.|last35=Brodrick|first35=D. P.|last36=Cooray|first36=F.|last37=DeBoer|first37=D. R.|last38=Diamond|first38=P. J.|last39=Ekers|first39=R.|last40=Gough|first40=R. G.|last41=Hampson|first41=G. A.|last42=Harvey-Smith|first42=L.|last43=Hay|first43=S. G.|last44=Hayman|first44=D. B.|last45=Jackson|first45=C. A.|last46=Johnston|first46=S.|last47=Koribalski|first47=B. S.|last48=McClure-Griffiths|first48=N. M.|last49=Mirtschin|first49=P.|last50=Ng|first50=A.|last51=Norris|first51=R. P.|last52=Pearce|first52=S. E.|last53=Phillips|first53=C. J.|last54=Roxby|first54=D. N.|last55=Troup|first55=E. R.|last56=Westmeier|first56=T.|title=The Detection of an Extremely Bright Fast Radio Burst in a Phased Array Feed Survey|journal=The Astrophysical Journal|date=22 May 2017|volume=841|issue=1|pages=L12|doi=10.3847/2041-8213/aa71ff|arxiv = 1705.07581 |bibcode = 2017ApJ...841L..12B|s2cid=55643060 |doi-access=free }}{{Cite news |url=https://cosmosmagazine.com/space/australian-telescope-spies-first-burst-from-beyond-the-galaxy-many-more-expected |title=Australian telescope spies its first burst from beyond the galaxy, many more expected. 2017 |newspaper=Cosmos Magazine |date=22 May 2017 |access-date=2017-05-24 |archive-date=2020-10-21 |archive-url=https://web.archive.org/web/20201021031555/https://cosmosmagazine.com/space/australian-telescope-spies-first-burst-from-beyond-the-galaxy-many-more-expected/ }}

According to Anastasia Fialkov and Abraham Loeb, FRB's could be occurring as often as once per second. Earlier research could not identify the occurrence of FRB's to this degree.{{Cite journal|last1=Fialkov|first1=Anastasia|last2=Loeb|first2=Abraham|date=2017|title=A Fast Radio Burst Occurs Every Second throughout the Observable Universe|journal=The Astrophysical Journal Letters|language=en|volume=846|issue=2|pages=L27|doi=10.3847/2041-8213/aa8905|issn=2041-8205|bibcode=2017ApJ...846L..27F|arxiv=1706.06582|s2cid=118955427 |doi-access=free }}

File:Artist’s impression of a fast radio burst traveling through space and reaching Earth.tif

Three FRBs were reported in March 2018 by Parkes Observatory in Australia. One (FRB 180309) had the highest signal-to-noise ratio yet seen of 411.{{Cite web|url=http://www.techtimes.com/articles/223230/20180319/strongest-fast-radio-burst-signal-from-space-captured-in-australia.htm|title=Strongest Fast Radio Burst Signal From Space Captured In Australia | Tech Times|date=19 March 2018 }}{{Cite web|url=https://www.frbcat.org/|title=FRBCAT|website=www.frbcat.org}}

The unusual CHIME (Canadian Hydrogen Intensity Mapping Experiment) radio telescope, operational from September 2018, can be used to detect "hundreds" of fast radio bursts as a secondary objective to its cosmological observations.{{cite journal |title='Half-pipe' telescope will probe dark energy in teen Universe |journal=Nature |date=29 July 2015 |last=Castelvecchi |first=Davide |volume=523 |issue=7562 |pages=514–515 |doi=10.1038/523514a |bibcode=2015Natur.523..514C |pmid=26223607|doi-access=free}} FRB 180725A was reported by CHIME as the first detection of a FRB under 700 MHz – as low as 580 MHz.{{cite web |last=MacDonald |first=Fiona |title=Astronomers Have Detected an Intense And Mysteriously Low Frequency Radio Signal Coming From Space |url=https://www.sciencealert.com/astronomers-have-detected-an-intense-and-mysteriously-low-frequency-radio-signal-coming-from-space |date=6 August 2018 |website=ScienceAlert.com |access-date=6 August 2018}}

In October 2018, astronomers reported 19 more new non-repeating FRB bursts detected by the Australian Square Kilometre Array Pathfinder (ASKAP).{{cite web |last=Wall |first=Mike |title=Mysterious Deep-Space Flashes: 19 More 'Fast Radio Bursts' Found |url=https://www.space.com/42085-mysterious-fast-radio-bursts-new-discoveries.html |date=10 October 2018 |work=Space.com |access-date=10 October 2018}}{{cite journal |author=Shannon, R.M.|display-authors=etal|title=The dispersion–brightness relation for fast radio bursts from a wide-field survey |date=10 October 2018 |journal=Nature |volume=562 |issue=7727 |pages=386–390 |doi=10.1038/s41586-018-0588-y |pmid=30305732 |bibcode=2018Natur.562..386S|s2cid=52956368|url=https://ora.ox.ac.uk/objects/uuid:fa171043-5bf8-4b9a-9e77-94db8842f672}} These included three with dispersion measure (DM) smaller than seen before : FRB 171020 (DM=114.1), FRB 171213 (DM=158.6), FRB 180212 (DM=167.5).{{Cite web|url=https://www.researchgate.net/publication/328200565|title=The dispersion–brightness relation for fast radio bursts from a wide-field survey | Request PDF}}

On 9 January 2019, astronomers announced the discovery of a second repeating FRB source, named FRB 180814, by CHIME. Six bursts were detected between August and October 2018, "consistent with originating from a single position on the sky". The detection was made during CHIME's pre-commissioning phase, during which it operated intermittently, suggesting a "substantial population of repeating FRBs", and that the new telescope would make more detections.{{cite journal |author=The CHIME/FRB Collaboration |title=A second source of repeating fast radio bursts |date=9 January 2019 |journal=Nature |volume=566 |issue=7743 |pages=235–238 |doi=10.1038/s41586-018-0864-x |pmid=30653190 |arxiv=1901.04525 |author-link=Canadian Hydrogen Intensity Mapping Experiment |bibcode=2019Natur.566..235C|s2cid=186244363 }}{{cite news |last=Overbye |first=Dennis |author-link=Dennis Overbye |title=Broadcasting from Deep Space, a Mysterious Series of Radio Signals |url=https://www.nytimes.com/2019/01/10/science/radio-bursts-universe-astronomy.html |date=10 January 2019 |work=The New York Times |access-date=11 January 2019}}

Some news media reporting of the discovery speculated that the repeating FRB could be evidence of extraterrestrial intelligence,{{cite news |last1=Busby |first1=Mattha |title=Mysterious fast radio bursts from deep space 'could be aliens' |url=https://www.theguardian.com/science/2019/jan/09/repeating-fast-radio-bursts-from-deep-space-could-be-aliens |access-date=10 January 2019 |work=The Guardian |date=9 January 2019}}{{cite news |last1=Rice |first1=Doyle |title=Alien signals? More bizarre 'fast radio bursts' detected from outer space |url=https://eu.usatoday.com/story/news/2019/01/09/fast-radio-bursts-more-bizarre-signals-detected-outer-space/2526767002/ |access-date=10 January 2019 |work=USA Today |date=10 January 2019 |language=en}} a possibility explored in relation to previous FRBs by some scientists,{{cite web |title=Could Fast Radio Bursts Be Powering Alien Probes? |url=https://www.cfa.harvard.edu/news/2017-09 |website=Harvards & Smithsonian Center for Astrophysics |access-date=10 January 2019 |location=Cambridge, Massachusetts |language=en |date=8 March 2017}} but not raised by the discoverers of FRB 180814.

{{main|FRB 180916.J0158+65}}

FRB 180916,{{cite news |last=Wiegert |first=Theresa |title=Radio waves from famous FRB surprisingly long and late - Astronomers have managed to detect very long wavelength radio emission from a well-studied, repeating fast radio burst, called FRB 20180916B. What's more, the longer wavelengths arrive 3 days after the shorter wavelength counterpart of the signal! Why? |url=https://earthsky.org/space/fast-radio-burst-waves-long-and-late |date=28 April 2021 |work=Earth & Sky |access-date=29 April 2021 }} more formally FRB 180916.J0158+65, is a repeating FRB discovered by CHIME, that later studies found to have originated from a medium-sized spiral galaxy (SDSS J015800.28+654253.0) about 500 million light-years away – the closest FRB discovered to date.{{cite news |last=Mann |first=Adam |title=Origin of Deep-Space Radio Flash Discovered, and It's Unlike Anything Astronomers Have Ever Seen - Things are only getting more confusing. |url=https://www.space.com/fast-radio-bursts-traced-to-origin.html |date=8 January 2020 |work=Space.com |access-date=8 January 2020}} It is also the first FRB observed to have a regular periodicity. Bursts are clustered into a period of about four days, followed by a dormant period of about 12 days, for a total cycle length of {{val|16.35|0.18}} days.{{cite journal |author=Amiri, M. |display-authors=et al. |title=Periodic activity from a fast radio burst source |journal=Nature |date=3 February 2020 |volume=582 |issue=7812 |pages=351–355 |doi=10.1038/s41586-020-2398-2 |pmid=32555491 |arxiv=2001.10275v3|bibcode=2020Natur.582..351C }}{{cite arXiv |last1=Lyutikov |first1=Maxim |last2=Barkov |first2=Maxim |last3=Giannios |first3=Dimitrios |title=FRB-periodicity: weak pulsar in tight early B-star binary |date=5 February 2020 |eprint=2002.01920v1 |class=astro-ph.HE}}{{cite news |last=Ferreira |first=Becky |title=Something in Deep Space Is Sending Signals to Earth in Steady 16-Day Cycles – Scientists have discovered the first fast radio burst that beats at a steady rhythm, and the mysterious repeating signal is coming from the outskirts of another galaxy|url=https://www.vice.com/en_us/article/wxexwz/something-in-deep-space-is-sending-signals-to-earth-in-steady-16-day-cycles |date=7 February 2020 |work=Vice |access-date=8 February 2020}} Additional followup studies of the repeating FRB by the Swift XRT and UVOT instruments were reported on 4 February 2020;{{cite news |author=Tavni, M. |display-authors=et al. |title=ATel #3446 – Swift X-ray Observations of the Repeating FRB 180916.J0158+65 |url=http://www.astronomerstelegram.org/?read=13446 |date=4 February 2020 |work=The Astronomer's Telegram |access-date=7 February 2020}} by the Sardinia Radio Telescope (SRT) and Medicina Northern Cross Radio Telescope (MNC), on 17 February 2020;{{cite news |author=Pilia, M. |display-authors=et al. |title=ATel#13492 – Observations of FRB 180916.J0158+65 with SRT and the MNC |url=http://www.astronomerstelegram.org/?read=13492 |date=17 February 2020 |work=The Astronomer's Telegram |access-date=18 February 2020}} and, by the Galileo telescope in Asiago, also on 17 February 2020.{{cite news |author=Zampleri, Luca |display-authors=et al. |title=ATel#13493 – Upper limit on the optical fluence of FRB 180916.J0158+65 |url=http://www.astronomerstelegram.org/?read=13493 |date=17 February 2020 |work=The Astronomer's Telegram |access-date=18 February 2020}} Further observations were made by the Chandra X-ray Observatory on 3 and 18 December 2019, with no significant x-ray emissions detected at the FRB 180916 location, or from the host galaxy SDSS J015800.28+654253.0.{{cite news |author=Kong, A.K.H. |display-authors=et al. |title=ATel#13589 – Chandra X-ray observations of the fast radio burst repeater FRB 180916.J0158+65 |url=http://www.astronomerstelegram.org/?read=13589 |date=25 March 2020 |work=The Astronomer's Telegram |access-date=25 March 2020}} On 6 April 2020, followup studies by the Global MASTER-Net were reported on The Astronomer's Telegram.{{cite news |author=Zhirkov, K. |display-authors=et al. |title=ATel #13621: Global MASTER-Net optical monitoring of repeating FRB180916.J0158+65 |url=http://www.astronomerstelegram.org/?read=13621 |date=6 April 2020 |work=The Astronomer's Telegram |access-date=7 April 2020}} On 25 August 2021, further observations were reported.{{cite news |last=Starr |first=Michelle |title=This Fast Radio Burst Repeats in a Strict Pattern, And We Still Can't Figure Out Why |url=https://www.sciencealert.com/a-binary-wind-can-t-explain-the-weird-pattern-in-this-fast-radio-burst |date=26 August 2021 |work=ScienceAlert |access-date=26 August 2021 }}{{cite journal |author=Pastor-Marazuela, Inés |display-authors=et al. |title=Chromatic periodic activity down to 120 megahertz in a fast radio burst |url=https://www.nature.com/articles/s41586-021-03724-8 |date=25 August 2021 |journal=Nature |volume=596 |issue=7873 |pages=505–508 |doi=10.1038/s41586-021-03724-8 |issn=0028-0836|arxiv=2012.08348 |pmid=34433943 |bibcode=2021Natur.596..505P |s2cid=237307099 |access-date=26 August 2021 }}

FRB 181112 was mysteriously unaffected after believed to have passed through the halo of an intervening galaxy.{{cite web |first=Ethan |last=Siegel |title=One Cosmic Mystery Illuminates Another, As Fast Radio Burst Intercepts A Galactic Halo |url=https://www.forbes.com/sites/startswithabang/2019/09/30/one-cosmic-mystery-sheds-light-on-another-as-fast-radio-burst-passes-through-a-galactic-halo/#15d31a55e133 |work=Forbes |date=30 September 2019 |access-date=8 February 2020}}

FRB 180924 is the first non-repeating FRB to be traced to its source. The source is a galaxy 3.6 billion light-years away. The galaxy is nearly as large as the Milky Way and about 1000 times larger than the source galaxy of FRB 121102. While the latter is an active site of star formation and a likely place for magnetars, the source of FRB 180924 is an older and less active galaxy.{{cite journal |last1=Bannister |first1=K. W. |last2=Deller |first2=A. T. |last3=Phillips |first3=C. |last4=Macquart |first4=J.-P. |last5=Prochaska |first5=J. X. |last6=Tejos |first6=N. |last7=Ryder |first7=S. D. |last8=Sadler |first8=E. M. |last9=Shannon |first9=R. M. |last10=Simha |first10=S. |last11=Day |first11=C. K. |last12=McQuinn |first12=M. |last13=North-Hickey |first13=F. O. |last14=Bhandari |first14=S. |last15=Arcus |first15=W. R. |last16=Bennert |first16=V. N. |last17=Burchett |first17=J. |last18=Bouwhuis |first18=M. |last19=Dodson |first19=R. |last20=Ekers |first20=R. D. |last21=Farah |first21=W. |last22=Flynn |first22=C. |last23=James |first23=C. W. |last24=Kerr |first24=M. |last25=Lenc |first25=E. |last26=Mahony |first26=E. K. |last27=O'Meara |first27=J. |last28=Osłowski |first28=S. |last29=Qiu |first29=H. |last30=Treu |first30=T. |last31=U |first31=V. |last32=Bateman |first32=T. J. |last33=Bock |first33=D. C.-J. |last34=Bolton |first34=R. J. |last35=Brown |first35=A. |last36=Bunton |first36=J. D. |last37=Chippendale |first37=A. P. |last38=Cooray |first38=F. R. |last39=Cornwell |first39=T. |last40=Gupta |first40=N. |last41=Hayman |first41=D. B. |last42=Kesteven |first42=M. |last43=Koribalski |first43=B. S. |last44=MacLeod |first44=A. |last45=McClure-Griffiths |first45=N. M. |last46=Neuhold |first46=S. |last47=Norris |first47=R. P. |last48=Pilawa |first48=M. A. |last49=Qiao |first49=R.-Y. |last50=Reynolds |first50=J. |last51=Roxby |first51=D. N. |last52=Shimwell |first52=T. W. |last53=Voronkov |first53=M. A. |last54=Wilson |first54=C. D. |title=A single fast radio burst localized to a massive galaxy at cosmological distance |journal=Science |volume=365 |issue=6453 |date=27 June 2019 |pages=565–570 |doi=10.1126/science.aaw5903|pmid=31249136 |bibcode=2019Sci...365..565B |arxiv=1906.11476|s2cid=195699409 }}{{cite news |last1=O'Callaghan |first1=Jonathan |title=Mysterious Outburst's Quiet Cosmic Home Yields More Questions Than Answers |url=https://www.scientificamerican.com/article/mysterious-outbursts-quiet-cosmic-home-yields-more-questions-than-answers/ |access-date=29 June 2019 |work=Scientific American |date=27 June 2019 |language=en}}{{cite journal |last1=Clery |first1=Daniel |title=Baffling radio burst traced to a galaxy 3.6 billion light-years away |journal=Science |date=27 June 2019 |doi=10.1126/science.aay5459|s2cid=198455128 }}

Because the FRB was nonrepeating, the astronomers had to scan large areas with the 36 telescopes of ASKAP. Once a signal was found, they used the Very Large Telescope, the Gemini Observatory in Chile, and the W. M. Keck Observatory in Hawaii to identify its host galaxy and determine its distance. Knowledge of the distance and source galaxy properties enables a study of the composition of the intergalactic medium.

On 28 June 2019, Russian astronomers reported the discovery of nine FRB events (FRB 121029, FRB 131030, FRB 140212, FRB 141216, FRB 151125.1, FRB 151125.2, FRB 160206, FRB 161202, FRB 180321), which include FRB 151125, the third repeating one ever detected, from the direction of the M 31 (Andromeda Galaxy) and M 33 (Triangulum Galaxy) galaxies during the analysis of archive data (July 2012 to December 2018) produced by the BSA/LPI large phased array radio telescope at the Pushchino Radio Astronomy Observatory.{{cite news |author=Fedorova, V.A. |display-authors=et al. |title=Detection of nine new Fast Radio Bursts in the direction of the galaxy M31 and M33 at the frequency 111 MHz at the radio telescope BSA LPI. |url=http://www.astronomerstelegram.org/?read=12899 |date=29 June 2019 |work=The Astronomer's Telegram |access-date=4 July 2019}}{{cite news |author=Staff |title=Search Fast Radio Burst at the frequency 111 MHz – News About Our Project |url=https://www.frb.su/pustaya-stranica |date=28 June 2019 |work=Pushchino Radio Astronomy Observatory |access-date=3 July 2019 |archive-date=5 December 2019 |archive-url=https://web.archive.org/web/20191205071719/https://www.frb.su/pustaya-stranica |url-status=dead }}{{cite news |last=Mack |first=Eric |title=More mysterious signals from deep space detected - New fast radio bursts from beyond our galaxy have been recorded, adding more data to help solve one of the universe's most recent puzzles. |url=https://www.cnet.com/news/more-mysterious-signals-from-deep-space-detected/ |access-date=3 July 2019}}

FRB 190520 was observed by the FAST telescope and was localized using the realfast{{Cite web |title=realfast |url=http://realfast.io/ |access-date=2022-03-01 |website=realfast.io}} system at the Karl G. Jansky Very Large Array (VLA). Optical observations using the Palomar 200-inch Hale Telescope revealed a host dwarf galaxy at redshift z=0.241. This is the second FRB observed to have an associated Persistent Radio Source (PRS). The dispersion measure(DM) and rotation measure measurements reveals a very dense, magnetized and turbulent environment local to the source. In June 2022, astronomers reported that FRB 20190520B was found to be another repeating FRB.{{cite news |last=Jones |first=Andrew |title=Discovery of second repeating fast radio burst raises new questions - Fast radio bursts (FRBs) are intense, brief flashes of radio-frequency emissions, lasting on the order of milliseconds. |url=https://www.space.com/second-fast-radio-burst-discovered |date=8 June 2022 |work=Space.com |access-date=8 June 2022 }} On 12 May 2023, FRB 20190520B was reported to show multiple bursts indicating magnetic field reversal.{{Cite web|url=https://cosmosmagazine.com/space/fast-radio-burst-magnetic-field/|title=First fast radio burst with reversible magnetic field found|date=May 12, 2023|website=cosmosmagazine.com}}

On 2 July 2019, astronomers reported that FRB 190523, a non-repeating FRB, has been discovered and, notably, localized to a few-arcsecond region containing a single massive galaxy at a redshift of 0.66, nearly 8 billion light-years away from Earth.{{cite journal |author=Ravi, V. |display-authors=et al. |title=A fast radio burst localized to a massive galaxy |date=2 July 2019 |journal=Nature |volume=572 |issue=7769 |pages=352–354 |doi=10.1038/s41586-019-1389-7 |pmid=31266051 |bibcode=2019Natur.572..352R |arxiv=1907.01542|s2cid=195776411 }}{{cite news |last=Mack |first=Eric |title=Another mysterious deep space signal traced to the other side of the universe – Fast radio bursts suddenly seem to be everywhere in the news, but they're still coming from very far away |url=https://www.cnet.com/news/another-mystery-deep-space-signal-traced-to-the-other-side-of-the-universe/ |date=2 July 2019 |work=CNET |access-date=3 July 2019}}

In August 2019, the CHIME Fast Radio Burst Collaboration reported the detection of eight more repeating FRB signals.{{cite news |last=Starr |first=Michelle |title=Astronomers Have Detected a Whopping 8 New Repeating Signals From Deep Space |url=https://www.sciencealert.com/astronomers-have-bagged-a-jaw-dropping-haul-of-eight-new-repeating-fast-radio-bursts |date=14 August 2018 |work=Science Alert.com |access-date=14 August 2019}}{{cite arXiv |author=Andersen, B.C. |display-authors=et al. |title=CHIME/FRB Detection of Eight New Repeating Fast Radio Burst Sources |date=9 August 2019 |eprint=1908.03507v1 |class=astro-ph.HE}}

On 29 December 2019, Australian astronomers from the Molonglo Observatory Synthesis Telescope (MOST), using the UTMOST fast radio burst equipment, reported the detection of FRB 191223 in the Octans constellation (RA = 20:34:14.14, DEC = -75:08:54.19).{{cite web |author=Staff |title=Finding the constellation which contains given sky coordinates |url=http://djm.cc/constellation.html |date=2 August 2008 |work=DJM.cc |access-date=29 December 2019}}{{cite news |author=Gupta, V. |display-authors=et al. |title=FRB191223 found at UTMOST – ATel #13363 |url=http://www.astronomerstelegram.org/?read=13363 |date=29 December 2019 |work=The Astronomer's Telegram |access-date=29 December 2019}}

On 31 December 2019, Australian astronomers, using the Australian Square Kilometre Array Pathfinder (ASKAP), reported the detection of FRB 191228 in the Piscis Austrinus constellation (RA = 22:57(2), DEC = -29:46(40)).{{cite news |author=Shannon, R. M. |display-authors=et al. |title=ATel #13376 - ASKAP detection of FRB 191228 |url=http://www.astronomerstelegram.org/?read=13376 |date=31 December 2019 |work=The Astronomer's Telegram |access-date=31 December 2019}}

In February & March 2022, astronomers reported that a globular cluster of M81, a grand design spiral galaxy about 12 million light-years away, may be the source of FRB 20200120E, a repeating fast radio burst.{{cite news |last=Starr |first=Michelle |title=Mysterious Repeating Fast Radio Burst Traced to Very Unexpected Location |url=https://www.sciencealert.com/mysterious-repeating-fast-radio-burst-traced-to-very-unexpected-location |date=23 February 2022 |work=ScienceAlert |access-date=24 February 2022 }}{{cite journal |author=Kirsten, F |display-authors=et al. |title=A repeating fast radio burst source in a globular cluster |url=https://www.nature.com/articles/s41586-021-04354-w |date=23 February 2022 |journal=Nature |volume=602 |issue=7898 |pages=585–589 |doi=10.1038/s41586-021-04354-w |pmid=35197615 |arxiv=2105.11445 |bibcode=2022Natur.602..585K |s2cid=235166402 |access-date=24 February 2022 }}{{cite journal |author=Bhardwaj, Mohit |display-authors=et al. |title=A Nearby Repeating Fast Radio Burst in the Direction of M81 |date=31 March 2021 |journal=Astrophysical Journal Letters |volume=910 |number =2|pages=L18 |doi=10.3847/2041-8213/abeaa6 |arxiv=2103.01295 |bibcode=2021ApJ...910L..18B |hdl=1721.1/142146 |s2cid=232092851 |doi-access=free }}

Astronomers reported the discovery of FRB 20200317A (RA 16h22m45s, DEC p+56d44m50s) with FAST (Five-hundred-meter Aperture Spherical radio Telescope) in archival data on 22 September 2023. The detected FRB is "one of the faintest FRB sources detected so far", according to the report.{{cite news |author=Shanping, You |display-authors=et al. |title=ATel #16251: Discovery of FRB 20200317A at 1.25GHz with FAST |url=https://www.astronomerstelegram.org/?read=16251 |date=22 September 2023 |work=The Astronomer's Telegram |access-date=22 September 2023 }}

On 28 April 2020, astronomers at the Canadian Hydrogen Intensity Mapping Experiment (CHIME), reported the detection of a bright radio burst from the direction of the Galactic magnetar SGR 1935+2154 about 30,000 light years away in the Vulpecula constellation.{{cite news |author=Scholz, Paul |display-authors=et al. |title=ATel #13681: A bright millisecond-timescale radio burst from the direction of the Galactic magnetar SGR 1935+2154 |url=http://www.astronomerstelegram.org/?read=13681 |date=28 April 2020 |work=The Astronomer's Telegram |access-date=12 May 2020}}{{cite news |author=Zhang, S.-N. |display-authors=et al.|title=ATel #13687: Insight-HXMT detection of a bright short x-ray counterpart of the Fast Radio Burst from SGR 1935+2154 |url=http://www.astronomerstelegram.org/?read=13687 |date=29 April 2020 |work=The Astronomer's Telegram |access-date=12 May 2020}}{{cite news |author=Zhang, S.-N. |display-authors=et al. |title=ATel #13729: Insight-HXMT's continued observation plan for SGR J1935+2154 |url=http://www.astronomerstelegram.org/?read=13729 |date=12 May 2020 |work=The Astronomer's Telegram |access-date=12 May 2020}} The burst had a DM of 332.8 pc/cc. The STARE2{{Cite journal|last1=Bochenek|first1=Christopher D.|last2=McKenna|first2=Daniel L.|last3=Belov|first3=Konstantin V.|last4=Kocz|first4=Jonathon|last5=Kulkarni|first5=Shri R.|last6=Lamb|first6=James|last7=Ravi|first7=Vikram|last8=Woody|first8=David|date=2020-03-01|title=STARE2: Detecting Fast Radio Bursts in the Milky Way|journal=Publications of the Astronomical Society of the Pacific|volume=132|issue=1009|page=034202|doi=10.1088/1538-3873/ab63b3|arxiv=2001.05077|bibcode=2020PASP..132c4202B|s2cid=210718502|issn=0004-6280}} team independently detected the burst and reported that the burst had a fluence of >1.5 MJy ms, establishing the connection between this burst and FRBs at extragalactic distances. The burst was then referred to as FRB 200428.{{cite web|title=ATel #13729: Insight-HXMT's continued observation plan for SGR J1935+2154|url=http://www.astronomerstelegram.org/?read=13729|website=ATel|access-date=2020-05-15}} The detection is notable, as the STARE2 team claim it is the first ever FRB detected inside the Milky Way, and the first ever to be linked to a known source.{{cite news |last=Drake |first=Nadia |title='Magnetic Star' Radio Waves Could Solve the Mystery of Fast Radio Bursts - The surprise detection of a radio burst from a neutron star in our galaxy might reveal the origin of a bigger cosmological phenomenon |url=https://www.scientificamerican.com/article/magnetic-star-radio-waves-could-solve-the-mystery-of-fast-radio-bursts/ |date=5 May 2020 |work=Scientific American |access-date=12 May 2020}}{{cite news |last=Starr |first=Michelle |title=Exclusive: We Might Have First-Ever Detection of a Fast Radio Burst in Our Own Galaxy |url=https://www.sciencealert.com/a-galactic-magnetar-just-spat-out-something-shockingly-like-a-fast-radio-burst |date=1 May 2020 |work=ScienceAlert.com |access-date=12 May 2020}} That link strongly supports the idea that fast radio bursts emanate from magnetars.{{cite web | url =http://www.esa.int/Science_Exploration/Space_Science/Dead_star_emits_never-before_seen_mix_of_radiation |title=Dead star emits never-before seen mix of radiation|publisher=ESA| date=28 July 2020| access-date =29 July 2020}}

On 10 January 2024, astronomers reported that the source of FRB 20200610A was a "rare 'blob-like' group of galaxies".{{cite news |last=Strickland |first=Ashley |title=Astronomers say they've traced the origin of powerful and mysterious radio signal |url=https://www.cnn.com/2024/01/10/world/fast-radio-bursts-hubble-galaxy-group-scn/index.html |date=10 January 2024 |work=CNN |url-status=live |archive-url=https://archive.today/20240110172758/https://www.cnn.com/2024/01/10/world/fast-radio-bursts-hubble-galaxy-group-scn/index.html |archive-date=10 January 2024 |access-date=10 January 2024 }}

On 24 September 2020, astronomers reported the detection of two new FRBs, FRB200914 and FRB200919, by the Parkes Radio Telescope.{{cite news |author=Gupta, Vivek |display-authors=et al. |title=ATel #14040: Two new FRBs in the FRB190711 field detected at Parkes |url=http://www.astronomerstelegram.org/?read=14040 |date=24 September 2020 |work=The Astronomer's Telegram |access-date=24 September 2020 }} Upper limits on low-frequency emission from FRB 200914 were later reported by the Square Kilometre Array radio telescope project.{{cite news |author=Ung, D. |display-authors=et al. |title=ATel #14044: Upper limits on low-frequency emission from FRBs 200914 and 200919 from SKA-Low prototype stations |url=http://www.astronomerstelegram.org/?read=14044 |date=27 September 2020 |work=The Astronomer's Telegram |access-date=27 September 2020 }}

On 31 March 2021, the CHIME/FRB Collaboration reported the detection of FRB 20201124A and related multiple bursts within the week of 23 March 2021 — designated as 20210323A, 20210326A, 20210327A, 20210327B, 20210327C, and 20210328A{{cite news |author=CHIME/FRB Collaboration |title=ATel #14497:Recent high activity from a repeating Fast Radio Burst discovered by CHIME/FRB |url=https://www.astronomerstelegram.org/?read=14497 |date=31 March 2021 |work=The Astronomer's Telegram |access-date=2 April 2021 }} — and later, likely 20210401A and 20210402A. Further related observations were reported by other astronomers on 6 April 2021,{{cite news |author=Xu, Heng |display-authors=et al. |title=ATel #145218: FAST detection and localization of FRB20201124A |url=https://www.astronomerstelegram.org/?read=14518 |date=6 April 2021 |work=The Astronomer's Telegram |access-date=7 April 2021 }} 7 April 2021,{{cite news |author=Pearlman, Aaron B. |display-authors=et al. |title=ATel #14519: High Frequency Radio Observations of FRB 20201124A at 2.26 GHz using the Deep Space Network |url=https://www.astronomerstelegram.org/?read=14519 |date=7 April 2021 |work=The Astronomer's Telegram |access-date=7 April 2021 }}{{cite news |author=Campana, Sergio|author-link=Sergio Campana (astrophysicist) |display-authors=et al. |title=ATel #14523: Swift observations of FRB20201124A |url=https://www.astronomerstelegram.org/?read=14523 |date=7 April 2021 |work=The Astronomer's Telegram |access-date=7 April 2021 }} and many more as well,{{cite news |author=Ricci, Roberto |display-authors=et al. |title=ATel #14549: Detection of a persistent radio source at the location of FRB20201124A with VLA |url=https://www.astronomerstelegram.org/?read=14549 |date=14 April 2021 |work=The Astronomers Telegram |access-date=16 April 2021 }} including an "extremely bright" pulse on 15 April 2021.{{cite news |last=Herrmann |first=Wolfgang |title=ATel #14556: Extremely bright pulse from FRB20201124A observed with the 25-m Stockert Radio Telescope |url=https://www.astronomerstelegram.org/?read=14556 |date=16 April 2021 |work=The Astronomer's Telegram |access-date=17 April 2021 }} Source localization improvements were reported on 3 May 2021.{{cite news |author=Day, C. K. |display-authors=et al. |title=ATel #14592: ASKAP low-band interferometric localisation of the FRB 20201124A source |url=https://www.astronomerstelegram.org/?read=14592 |date=3 May 2021 |work=The Astronomer's Telegram |access-date=3 May 2021 }} Even more observations were reported in May 2021,{{cite news |author=Marcote, B. |display-authors=et al. |title=ATel #14603: VLBI localization of FRB 20201124A and absence of persistent emission on milliarcsecond scales|url=https://www.astronomerstelegram.org/?read=14603 |date=5 May 2021 |work=The Astronomer's Telegram |access-date=8 May 2021 }} including "two bright bursts".{{cite news |author=Kirsten, F. |display-authors=et al. |title=ATel #14605: Two bright bursts from FRB 20201124A with the Onsala 25-m telescope at 1.4 GHz, with no simultaneous emission detected at 330 MHz with Westerbork 25-m |url=https://www.astronomerstelegram.org/?read=14605 |date=6 May 2021 |work=The Astronomer's Telegram |access-date=8 May 2021 }} On 3 June 2021, the SETI Institute announced detecting "a bright double-peaked radio burst" from FRB 201124A on 18 May 2021.{{cite news |author=Staff |title=FRB Discovered by SETI Institute's Allen Telescope Array |url=https://www.seti.org/frb-discovered-seti-institutes-allen-telescope-array |date=3 June 2021 |work=SETI Institute |access-date=4 June 2021 }}{{cite news |author=Farah, W. |display-authors=et al. |title=ATel #14676: A bright double-peaked radio burst from FRB20201124A detected with the Allen Telescope Array |url=https://www.astronomerstelegram.org/?read=14676 |date=4 June 2021 |work=The Astronomer's Telegram |access-date=5 June 2021 }} Further observations were made by the Neil Gehrels Swift Observatory on 28 July 2021 and 7 August 7, 2021 without detecting a source on either date.{{cite news |author=O'Connor, B. |display-authors=et al. |title=ATel #14836: Further monitoring of FRB 20201124A with Swift |url=https://www.astronomerstelegram.org/?read=14836 |date=9 August 2021 |work=The Astronomer's Telegram |access-date=16 August 2021 }} On 23 September 2021, 9 new bursts from FRB 20201124A were reported to have been observed with the Effelsberg 100-m Radio Telescope, followed by one CHIME observation, all after four months of no detections.{{cite news |author=Main, Robert |display-authors=et al. |title=ATel #14933: Detection of 9 new bursts from FRB20201124A with the 100 m Effelsberg Telescope |url=https://www.astronomerstelegram.org/?read=14933 |date=23 September 2021 |work=The Astronomer's Telegram |access-date=24 September 2021 }} In January and February 2022, further observations of new bursts from FRB 20201124A with the Westerbork-RT1 25-m telescope were also reported.{{cite news |author=Ould-Boukattine, O. S. |display-authors=etal|title=ATel #15190: Burst detection from FRB 20201124A using the Westerbork-RT1 25-m telescope |url=https://www.astronomerstelegram.org/?read=15190 |date=28 January 2022 |work=The Astronomer's Telegram |access-date=15 February 2022 }}{{cite news |author=Ould-Boukattine, O. S. |display-authors=etal|title=ATel #15192: Subsequent detection of three more bursts from FRB 20201124A using the Westerbork-RT1 25-m telescope |url=https://www.astronomerstelegram.org/?read=15192 |date=29 January 2022 |work=The Astronomer's Telegram |access-date=15 February 2022 }}{{cite news |author=Atri, Pikky |display-authors=etal|title=ATel #15197: Detection of two bright bursts from FRB20201124A with Apertif at the Westerbork Synthesis Radio Telescope. |url=https://www.astronomerstelegram.org/?read=15197 |date=3 February 2022 |work=The Astronomer's Telegram |access-date=15 February 2022 }} In mid-March 2022, further observations of FRB 20201124 were reported.{{cite news |author=Takefuji, Kazuhiro |display-authors=et al.|title=ATel #15285: A bright burst detected at 2 GHz from the repeating FRB 20201124A |url=https://www.astronomerstelegram.org/?read=15285 |date=18 March 2022 |work=The Astronomer's Telegram |access-date=20 March 2022 }}{{cite news |author=Wang, Pei |display-authors=et al.|title=ATel #15288: FAST detect sustained activities and a bright burst from FRB20201124A |url=https://www.astronomerstelegram.org/?read=15288 |date=20 March 2022 |work=The Astronomer's Telegram |access-date=20 March 2022 }}{{cite news |author=Yuan, Jianping |display-authors=et al.|title=ATel #15289: Detection of bright bursts from the repeating FRB 20201124A with the Xinjiang Nanshan 26-m radio telescope |url=https://www.astronomerstelegram.org/?read=15289 |date=20 March 2022 |work=The Astronomer's Telegram |access-date=22 March 2022 }} In September 2022, astronomers suggested that the repeating FRB 20201124A may originate from a magnetar/Be star binary.{{cite journal |author=Wang, F.Y. |display-authors=et al. |title=Repeating fast radio burst 20201124A originates from a magnetar/Be star binary |date=21 September 2022 |journal=Nature Communications |volume=13 |number=4382 |page=4382 |doi=10.1038/s41467-022-31923-y |pmid=36130932 |pmc=9492772 |arxiv=2204.08124 |bibcode=2022NatCo..13.4382W }}{{cite news |last=Ferreira |first=Becky |title=Scientists Think They've Solved the Mystery of a Bizarre Repeating Radio Signal from Space - Fast Radio Bursts, or FRBs, are a deep-space mystery that still puzzles scientists. Now, the source of one of the most enigmatic may have been found. |url=https://www.vice.com/en/article/5d3545/fast-radio-burst-mystery-solved |date=21 September 2022 |work=Vice |access-date=22 September 2022 }}

On 2 and 3 April 2021, astronomers at the Australian Square Kilometre Array Pathfinder (ASKAP) reported the detection of FRB 20210401A and 20210402A which were understood likely to be repetitions of FRB 20201124A, a repeating FRB with recent very high burst activity, that was reported earlier by the CHIME/FRB collaboration.{{cite news |author=Kumar, Pravir |display-authors=et al. |title=ATel #14502: ASKAP detection of a repeat burst from the FRB 20201124A source |url=https://www.astronomerstelegram.org/?read=14502 |date=2 April 2021 |work=The Astronomer's Telegram |access-date=2 April 2021 }}{{cite news |author=Kumar, Pravir |title=ATel #14508: A second fast radio burst from the source of FRB 201124A detected by ASKAP |url=https://www.astronomerstelegram.org/?read=14508 |date=3 April 2021 |work=The Astronomer's Telegram |access-date=3 April 2021 }}

On 30 June 2021, astronomers at the Molonglo Observatory Synthesis Telescope (UTMOST) detected FRB 210630A at the "likely" position of "RA = 17:23:07.4, DEC =+07:51:42, J2000".{{cite news |author=Mandlik, A. |display-authors=et al. |title=ATel #14745: FRB20210630A found by UTMOST |url= https://www.astronomerstelegram.org/?read=14745 |date=1 July 2021 |work=The Astronomer's Telegram |access-date=2 July 2021 }}

On 15 December 2021, astronomers at the Neil Gehrels Swift Observatory reported further observations of the "bright CHIME FRB 20211122A (event #202020046 T0: 2021-12-11T16:58:05.183768)".{{cite news |author=Tohuvavohu, Aaron |display-authors=et al. |title=ATel #15114: Swift XRT/UVOT rapid follow-up of bright FRB 20211211A |url=https://www.astronomerstelegram.org/?read=15114 |date=15 December 2021 |work=The Astronomer's Telegram |access-date=15 December 2021 }}

On 14 April 2022, astronomers at Tianlai Cylinder Pathfinder Array (a radio interferometer located in Xinjiang, China, operated by the National Astronomical Observatory, Chinese Academy of Sciences (NAOC)) detected FRB 220414 (?) ("A bright burst was detected with a S/N~15 for ~2.2 ms duration at UT 17:26:40.368, April 14, 2022 (MJD 59684.06018945136)") located at "RA = 13h04m21s(\pm 2m12s), DEC = +48\deg18'05"(\pm 10'19")".{{cite news |author=Yu, Zijie |display-authors=et al. |title=ATel #15342: Detection of a bright FRB with the Tianlai Cylinder Pathfinder Array |url=https://www.astronomerstelegram.org/?read=15342 |date=22 April 2022 |work=The Astronomer's Telegram |access-date=23 April 2022 }}

On 19 October 2023, astronomers reported that FRB 20220610A traveled for 8 billion years to reach Earth equivalent at a redshift of $z=1$ making it the oldest FRB known and also calculated to be the most energetic one with a spectral energy density of ~{{Val|6.4|e=32}}erg/Hz and a maximum burst energy of ~{{Val|2|e=42}}erg higher than the previous predicted maximum energy for FRBs.{{cite journal |author=Ryder, S.D. |display-authors=et al. |date=19 October 2023 |title=A luminous fast radio burst that probes the Universe at redshift 1 |url=https://www.science.org/doi/10.1126/science.adf2678 |url-status=live |journal=Science |volume=382 |issue=6668 |pages=294–299 |doi=10.1126/science.adf2678 |pmid=37856596 |archive-url=https://archive.today/20231020123500/https://www.science.org/doi/10.1126/science.adf2678 |archive-date=20 October 2023 |access-date=20 October 2023|arxiv=2210.04680 |bibcode=2023Sci...382..294R }}{{cite journal |last=Conroy |first=Gemma |date=19 October 2023 |title=This fast radio burst took 8 billion years to reach Earth - The bright flash has cosmologists adjusting their models on how such intergalactic energy behaves. |url=https://www.nature.com/articles/d41586-023-03264-3 |url-status=live |journal=Nature |doi=10.1038/d41586-023-03264-3 |pmid=37857878 |archive-url=https://archive.today/20231020121014/https://www.nature.com/articles/d41586-023-03264-3 |archive-date=20 October 2023 |access-date=20 October 2023}}{{Cite web |date=2023-10-19 |title=Incredibly Energetic Fast Radio Burst Is Most Distant Seen Yet |url=https://www.iflscience.com/incredibly-energetic-fast-radio-burst-is-most-distant-seen-yet-71202 |access-date=2023-11-14 |website=IFLScience |language=en}}{{Cite web |last=Curtin |first=Alice |date=Oct 26, 2022 |title=An FRB way off in the distance |url=https://astrobites.org/2022/10/26/an-frb-way-off-in-the-distance/ |website=Astrobites.org}} In January 2024, further detailed observations and studies were reported.{{cite news |last1=Carpineti |first1=Dr. Alfredo |last2=Simmons |first2=Laura |title=Notorious And Puzzling Radio Signal Traced Back To A Truly Unusual Place - A new fast radio burst comes from more than half the universe away! |url=https://www.iflscience.com/notorious-and-puzzling-radio-signal-traced-back-to-a-truly-unusual-place-72574 |date=23 January 2024 |work=IFLScience |url-status=live |archive-url=https://archive.today/20240124024840/https://www.iflscience.com/notorious-and-puzzling-radio-signal-traced-back-to-a-truly-unusual-place-72574 |archive-date=24 January 2024 |access-date=23 January 2024 }}

On 15 October 2022, astronomers at CHIME/FRB reported the detection of nine bursts in three days of FRB 20220912A.{{cite news |author=Mckinven, Ryan |display-authors=et al. |title=ATel #15679:Nine Bursts in Three Days from a Newly Discovered Repeating Source of Fast Radio Bursts |url=https://www.astronomerstelegram.org/?read=15679 |date=15 October 2022 |work=The Astronomer's Telegram |access-date=2 November 2022 }} Since later bursts observed between 15 October 2022 and 29 October 2022 by the CHIME/FRB collaboration, astronomers, afterwards, at the Allen Telescope Array (ATA), on 1 November 2022, reported eight more bursts from FRB 20220912A. ATA coordinates were first set to the original settings (23h09m05.49s + 48d42m25.6s) and then later to the newly updated ones (23h09m04.9s +48d42m25.4s).{{cite news |author=Sheikh, S |display-authors=et al. |title=ATel #15735: Bright radio bursts from the active FRB 20220912A detected with the Allen Telescope Array |url=https://www.astronomerstelegram.org/?read=15735 |date=1 November 2022 |work=The Astronomer's Telegram |access-date=2 November 2022 }} On 13 November 2022, further burst activity of FRB 20220912A was reported by the Tianlai Dish Pathfinder Array in Xinjiang, China{{cite news |author=Yu, Zijie |display-authors=et al. |title=ATel #15758: Detection of FRB 20220912A at 750 MHz with the Tianlai Dish Pathfinder Array |url=https://www.astronomerstelegram.org/?read=15758 |date=13 November 2022 |work=The Astronomer's Telegram |access-date=13 November 2022 }} and, on 5 December 2022, from several other observatories.{{cite news |author=Rajwade, Kaustubh |display-authors=et al.|title=ATel #15791: Detection of bursts from FRB 20220912A at 1.4 and 2.2 GHz |url=https://www.astronomerstelegram.org/?read=15791 |date=5 December 2022 |work=The Astronomer's Telegram |access-date=5 December 2022}} On 13 December 2022, over a hundred bursts from FRB 220912A were reported by the Upgraded Giant Metrewave Radio Telescope (uGMRT), operated by the National Centre for Radio Astrophysics of the Tata Institute of Fundamental Research in India.{{cite news |author=Bhusare, Yash |display-authors=et al |title=ATel #15806: uGMRT detection of more than a hundred bursts from FRB 20220912A in 300 - 750 MHz frequency range |url=https://www.astronomerstelegram.org/?read=15806 |date=13 December 2022 |work=The Astronomer's Telegram |access-date=13 December 2022 }} On 21 December 2022, several more bright bursts of FRB 220912A using the Westerbork-RT1 were reported.{{cite news |author=Ouid-Boukattine, O.S. |display-authors=et al |title=ATel #15817: Bright burst detections from FRB 20220912A at 332 MHz using the Westerbork-RT1 25-m telescope|url=https://www.astronomerstelegram.org/?read=15817 |date=21 December 2022 |work=The Astronomer's Telegram |access-date=21 December 2022 }} Four more bursts were reported on 13 July 2023 by the Medicina Radio Observatory (specifically by the Medicina Northern Cross (MNC) radio telescope) in Bologna, Italy.{{cite news |author=Pelliciari, D |display-authors=et al |title=ATel #16130: Four new bursts from FRB 20220912A at 408 MHz |url=https://www.astronomerstelegram.org/?read=16130 |date=13 July 2023 |work=The Astronomer's Telegram |access-date=14 July 2023 }} Based on four bursts, burst rate constraints of FRB 20220912A at various frequencies using the Green Bank 20-meter telescope were reported on 18 August 2023.{{cite news |author=Doskoch, Graham |display-authors=et al |title=ATel #16196: Multifrequency constraints on the burst rate of FRB20220912A |url=https://www.astronomerstelegram.org/?read=16196 |date=18 August 2023 |work=The Astronomer's Telegram |access-date=19 August 2023 }} Swift X-ray observations were reported on 1 September 2023.{{cite news |author=Verrecchia, F. |display-authors=et al |title=Atel #16221: The Swift X-ray Observations Campaign of the Repeating FRB20220912A |url=https://www.astronomerstelegram.org/?read=16221 |date=1 September 2023 |work=The Astronomer's Telegram |access-date=1 September 2023 }}

On 13 July 2022, the discovery of an unusual FRB 20191221A detected by CHIME was reported. It is a multicomponent pulse (nine or more components) with peaks separated by 216.8ms and lasting an unusually long duration of three seconds. This is the first time such a periodic pulse was detected.{{cite journal | url =https://www.nature.com/articles/s41586-022-04841-8 |title=Sub-second periodicity in a fast radio burst|journal=Nature |author1=The CHIME/FRB Collaboration |author2=Bridget C. Andersen |display-authors=etal | date=13 July 2022|volume=607 |issue=7918 |pages=256–259 |doi=10.1038/s41586-022-04841-8 |pmid=35831603 |arxiv=2107.08463 |bibcode=2022Natur.607..256C |s2cid=236088032 | access-date =14 July 2022}}

On 1 December 2022, astronomers reported the discovery of FRB 20221128A, using the UTMOST-NS radio telescope located in New South Wales, Australia. According to the astronomers, "The most likely position [of FRB 20221128A] is RA = 07:30(10), DEC = -41:32(1), J2000 which corresponds to Galactic coordinates: Gl = 177.1 deg, Gb = 24.45 deg".{{cite news |author=Mandlik, A. |display-authors=et al. |title=ATel #15783: FRB20221128A found by UTMOST-NS |url=https://www.astronomerstelegram.org/?read=15783 |date=1 December 2022 |work=The Astronomer's Telegram |access-date=1 December 2022 }} Later, on 19 January 2023, a corrected position [of FRB 20221128A] was reported as follows: "The revised FRB position is RA = 07:30(10), DEC = -42:30(1) in equatorial (J2000) coordinates, which corresponds to Galactic coordinates: Gl = 255.1 deg, Gb = -11.4 deg (we additionally note that the Galactic coordinates in ATel #15783 were in error)".{{cite news |author=Mandlik, A. |display-authors=et al. |title=ATel #15865: FRB20221128A - corrected position and fluence |url=https://www.astronomerstelegram.org/?read=15865 |date=19 January 2023 |work=The Astronomer's Telegram |access-date=19 January 2023 }}

On 6 December 2022, detection of a possible magnetar gamma-ray burst at or near the same time and location as a fast radio burst was reported.{{cite news |author=Younes, G |display-authors=et al. |title=ATel #15794: GBM detection of a faint magnetar-like burst temporally coincident with a CHIME/FRB radio burst |url=https://www.astronomerstelegram.org/?read=15794 |date=6 December 2022 |work=The Astronomer's Telegram |access-date=8 December 2022 }}

Discovery of FRB 20230814A by the Deep Synoptic Array (DSA-110) was reported on 16 August 2023, and was determined to be localized (preliminarily) at 22h23m53.9s +73d01m33.3s (J2000).{{cite news |author=Ravi, Vikram |display-authors=et al. |title=ATel #16191: DSA-110 discovery and localization of repeating source FRB 20230814A |url=https://www.astronomerstelegram.org/?read=16191 |date=16 August 2023 |work=The Astronomer's Telegram |access-date=16 August 2023 }}

Observations of FRB 20230905 in the X-ray and UV range by the Neil Gehrels Swift Observatory was reported as bright and non-repeating on 7 September 2023.{{cite news |author=Tohuvcavohu, Aaron |display-authors=et al. |title=ATel #16233: X-ray and UV observations of a bright non-repeating FRB at T0+236 seconds |url=https://www.astronomerstelegram.org/?read=16233 |date=7 September 2023 |work=The Astronomer's Telegram |access-date=10 September 2023 }}

Discovery of a new repeating FRB 20240114A by the CHIME/FRB Collaboration (at position RA (J2000): 321.9162 +- 0.0087 deg, Dec (J2000): 4.3501 +- 0.0124 degrees) was reported on 26 January 2024. The three bursts from the FRB were detected at "2024-01-14 21:50:39, 2024-01-21 21:30:40, and 2024-01-24 21:20:11 UTC", and associated with a galaxy cluster at 425 Mpc.{{cite news |author=Shin, Kaitlyn |display-authors=et al. |title=ATel #16420: CHIME/FRB discovery of a new repeating fast radio burst source FRB 20240114A |url=https://www.astronomerstelegram.org/?read=16420 |date=26 January 2024 |work=The Astronomer's Telegram |access-date=27 January 2024 }}{{cite news |author=O'Connor, Brendan |display-authors=et al. |title=ATel #16426: FRB 20240114A: A potential association with a galaxy cluster at 425 Mpc |url=https://www.astronomerstelegram.org/?read=16426 |date=30 January 2024 |work=The Astronomer's Telegram |url-status=live |archive-url=https://archive.today/20240131105331/https://www.astronomerstelegram.org/?read=16426 |archive-date=31 January 2024 |access-date=31 January 2024 }} On 5 February 2024, observations of five repeated bursts of FRB 20240114A on 2 February 2024 were reported using the Parkes/Murriyang Ultra Wideband Low (UWL) receiver system.{{cite news |author=Uttarkar, P.A.|display-authors=et al. |title=ATel #16430: Detection and confirmation of FRB 20240114A hyper-activity with Parkes/Murriyang |url=https://www.astronomerstelegram.org/?read=16430 |date=5 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240205111050/https://www.astronomerstelegram.org/?read=16430 |archivedate=5 February 2024 |accessdate=5 February 2024 }}{{cite news |author=Uttarkar, R.A. |display-authors=et al. |title=ATel #16431: Addendum to ATel #16430: Detection and confirmation of FRB 20240114A hyper-activity with Parkes/Murriyang |url=https://www.astronomerstelegram.org/?read=16431 |date=5 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240206113313/https://www.astronomerstelegram.org/?read=16431 |archivedate=6 February 2024 |accessdate=6 February 2024 }} Also on 5 February 2024, a FRB detection was reported by the Westerbork RT1 25-m telescope.{{cite news |author=Ould-Boukattine, O.S. |display-authors=et al. |title=ATel #16432: Bright burst detection from FRB 20240114A at 327 MHz using the Westerbork RT1 25-m telescope |url=https://www.astronomerstelegram.org/?read=16432 |date=5 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240206113630/https://www.astronomerstelegram.org/?read=16432 |archivedate=6 February 2024 |accessdate=6 February 2024 }} On 8 February 2024, related observations of FRB 20240114A were reported by FAST (38 bursts from 28 January to 4 February){{cite news |author=Zhang, Junshuo |display-authors=et al. |title=ATel #16433: Detection of band-limited bursts from highly active FRB 20240114A by FAST |url=https://www.astronomerstelegram.org/?read=16433 |date=8 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240208121624/https://www.astronomerstelegram.org/?read=16433 |archivedate=8 February 2024 |accessdate=8 February 2024 }}{{cite news |author=Zhang, Junshuo |display-authors=et al. |title=ATel #16435: Addendum to ATel #16433: Detection of band-limited bursts from highly active FRB 20240114A by FAST |url=https://www.astronomerstelegram.org/?read=16435 |date=8 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240209115456/https://www.astronomerstelegram.org/?read=16435 |archivedate=9 February 2024 |accessdate=9 February 2024 }} and the Northern Cross Radio Telescope (1 burst on 1 February).{{cite news |author=Pelliciari, D. |display-authors=et al. |title=ATel #16434: Detection of a burst from the repeating FRB 20240114A at 408 MHz with the Northern Cross radio telescope |url=https://www.astronomerstelegram.org/?read=16434 |date=8 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240208121942/https://www.astronomerstelegram.org/?read=16434 |archivedate=8 February 2024 |accessdate=8 February 2024 }} Detection and localization studies of FRB 20240114A by MeerKAT in South Africa were reported on 14 February 2024.{{cite news |author=Tian, Jun |display-authors=et al. |title=ATel #16446: Detection and localisation of the highly active FRB 20240114A by MeerKAT |url=https://www.astronomerstelegram.org/?read=16446 |date=14 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240215105821/https://www.astronomerstelegram.org/?read=16446 |archivedate=15 February 2024 |accessdate=15 February 2024 }} On 15 February 2024, 10 bursts were reported to have been detected on 1 February 2024 by the Giant Metrewave Radio Telescope (GMRT) in India.{{cite news |author=Kumar, Ajay |display-authors=et al. |title=ATel #16452 - Detection of low radio frequency bursts from FRB 20240114A with GMRT and upper limits on any associated PRS |url=https://www.astronomerstelegram.org/?read=16452 |date=15 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240216112557/https://www.astronomerstelegram.org/?read=16452 |archivedate=16 February 2024 |accessdate=16 February 2024 }} On 29 February 2024, 51 bursts (including micro-structure) on 25 February 2024 using uGMRT were reported.{{cite news |author=Panda, Ujjwal |display-authors=et al. |title=ATel #16494 - Detection of 51 bursts from the active repeater FRB 20240114A with micro-structure by the uGMRT |url=https://www.astronomerstelegram.org/?read=16494 |date=29 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240302105533/https://www.astronomerstelegram.org/?read=16494 |archivedate=2 March 2024 |accessdate=2 March 2024 }} On 5 March 2024, a "burst storm" was reported from FRB 20240114A by the FAST radio telescope.{{cite news |author=ZHang, Junsho |display-authors=et al. |title=ATel #16505 - Detection of hyper-activity of FRB 20240114A with FAST |url=https://www.astronomerstelegram.org/?read=16505 |date=5 March 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240306111846/https://www.astronomerstelegram.org/?read=16505 |archivedate=6 March 2024 |accessdate=6 March 2024 }} On 20 March 2024, the European VLBI Network (EVN) reported several detailed studies, which included observations on 15 February 2024 (7 bursts) and 20 February 2024 (13 bursts), of FRB 20240114A was observed on 17 March 2024240114A.{{cite news |author=Snelders, M.P. |display-authors=et al. |title=ATel #16542 - EVN PRECISE localization of FRB 20240114A |url=https://www.astronomerstelegram.org/?read=16542 |date=20 March 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240320100540/https://www.astronomerstelegram.org/?read=16542 |archivedate=20 March 2024 |accessdate=20 March 2024 }} On 21 March 2024, the Northern Cross Radio Telescope in Italy reported a bright radio burst of FRB 20240114A, at updated coordinates of R.A.: 21:27:39.84, Dec: +04:19:46.34 (J2000), on 17 March 2024.{{cite news |author=Pelliciari, D. |display-authors=et al. |title=ATel #16547 - Bright burst detection from repeating FRB 20240114A at 408 MHz with the Northern Cross radio telescope |url=https://www.astronomerstelegram.org/?read=16547 |date=21 March 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240321094621/https://www.astronomerstelegram.org/?read=16547 |archivedate=21 March 2024 |accessdate=21 March 2024 }} On 2 April 2024, astronomers report over 100 detections of FRB 20240114A using five small European radio telescopes.{{cite news |author=Ould-Boukattine, O. S. |display-authors=et al. |title=ATel #16565 - Over 100 detections of FRB 20240114A using small European dishes |url=https://www.astronomerstelegram.org/?read=16565 |date=2 April 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240402110901/https://www.astronomerstelegram.org/?read=16565 |archivedate=2 April 2024 |accessdate=2 April 2024 }} On 18 April 2024, a coincident gamma-ray emission was observed possibly associated with FRB 20240114A.{{cite news |author=Xing, Yi |display-authors=et al. |title=ATel #16594 - Coincident gamma-ray emission in the direction of the active repeater FRB 20240114A |url=https://www.astronomerstelegram.org/?read=16594 |date=2 April 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240419115636/https://www.astronomerstelegram.org/?read=16594 |archivedate=19 April 2024 |accessdate=18 April 2024 }} On 23 April 2024, five repeat bursts from FRB 20240114A were reported to have been detected by the Nancay Radio Telescope at 2.5 GHz ("highest frequency to date") on 18 April 2024.{{cite news |author=Hewitt, D.M. |display-authors=et al. |title=ATel #16597 - Detection of bursts from FRB 20240114A at 2.5 GHz using the Nancay Radio Telescope |url=https://www.astronomerstelegram.org/?read=16597 |date=23 April 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240424104339/https://www.astronomerstelegram.org/?read=16597 |archivedate=24 April 2024 |accessdate=24 April 2024 }} On 25 April 2024, eight repeat bursts from FRB 20240114A were reported to have been detected by the Allen Telescope Array (ATA) at frequencies above 2.0 GHz.{{cite news |author=Joshi, Param |display-authors=et al. |title=ATel #16599 - Wideband detection of FRB 20240114A above 2 GHz with the Allen Telescope Array |url=https://www.astronomerstelegram.org/?read=16599 |date=25 April 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240426100616/https://www.astronomerstelegram.org/?read=16599 |archivedate=26 April 2024 |accessdate=26 April 2024 }} On 26 April 2024, no counterpart candidates (ie, "no significance gamma-ray emission") from FRB 20240114A were reported to have been observed by Fermi-LAT.{{cite news |author=Principe, G. |display-authors=et al. |title=ATel #16602 - FRB 20240114A: No counterpart candidate in Fermi-LAT observations |url=https://www.astronomerstelegram.org/?read=16602 |date=26 April 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240427111431/https://www.astronomerstelegram.org/?read=16602 |archivedate=27 April 2024 |accessdate=27 April 2024 }} On 4 May 2024, astronomers reported a redshift (ie, "a common redshift of z=0.1300+/-0002") for the FRB host galaxy, possibly a dwarf star-forming galaxy.{{cite news |author=Bhardwaj, Mohit |display-authors=et al. |title=ATel #16613 - A redshift for the host galaxy of FRB 20240114A |url=https://www.astronomerstelegram.org/?read=16613 |date=4 May 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://web.archive.org/web/20240505103455/https://www.astronomerstelegram.org/?read=16613 |archivedate=5 May 2024 |accessdate=5 May 2024 }} Astronomers, on 15 May 2024, reported multiple burst detections of FRB 20240114A up to 6 GHz using the Effelsberg 100-m Radio Telescope.{{cite news |author=Limaye, Pranav |display-authors=et al. |title=ATel #16620 - Broadband detection of bursts from FRB 20240114A up to 6GHz using the Effelsberg 100-m Telescope |url=https://www.astronomerstelegram.org/?read=16620 |date=15 May 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240515104533/https://www.astronomerstelegram.org/?read=16620 |archivedate=15 May 2024 |accessdate=15 May 2024 }} A gamma-ray flare associated with FRB 20240114A was reported on 25 May 2024.{{cite news |author=Xing, Yi |display-authors=et al. |title=ATel #16630 - Detection of a gamma-ray flare in the direction of FRB20240114A |url=https://www.astronomerstelegram.org/?read=16630 |date=25 May 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240525104158/https://www.astronomerstelegram.org/?read=16630 |archivedate=25 May 2024 |accessdate=25 May 2024 }}

Announcement of five bursts from FRB 20240216A, a new repeating fast radio burst source, detected by Australian SKA Pathfinder (ASKAP) at position (J2000) of RA: 10:12:19.9 DEC: +14:02:26, was reported on 22 February 2024.{{cite news |author=Bannister, Keith |display-authors=et al. |title=ATel #16468 - ASKAP detection of a repeating fast radio burst source |url=https://www.astronomerstelegram.org/?read=16468 |date=22 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240222110325/https://www.astronomerstelegram.org/?read=16468 |archivedate=22 February 2024 |accessdate=22 February 2024 }} FAST, on February 24, 2024, reported no detection, with several explanations, of FRB 20240216A.{{cite news |author=Zhu, Weiwei |display-authors=et al. |title=ATel #16482 - FAST non-detection of FRB20240216A |url=https://www.astronomerstelegram.org/?read=16482 |date=24 February 2024 |work=The Astronomer's Telegram |url-status=live |archiveurl=https://archive.today/20240225110621/https://www.astronomerstelegram.org/?read=16482 |archivedate=25 February 2024 |accessdate=25 February 2024 }}

{{main|List of fast radio bursts}}

All FRBs are cataloged at TNS.{{cite web|url=https://www.wis-tns.org/search?&discovered_period_value=&discovered_period_units=days&unclassified_at=0&classified_sne=0&include_frb=1&name=&name_like=0&isTNS_AT=all&public=all&ra=&decl=&radius=&coords_unit=arcsec&reporting_groupid%5B%5D=null&groupid%5B%5D=null&classifier_groupid%5B%5D=null&objtype%5B%5D=130&at_type%5B%5D=null&date_start%5Bdate%5D=&date_end%5Bdate%5D=&discovery_mag_min=&discovery_mag_max=&internal_name=&discoverer=&classifier=&spectra_count=&redshift_min=&redshift_max=&hostname=&ext_catid=&ra_range_min=&ra_range_max=&decl_range_min=&decl_range_max=&discovery_instrument%5B%5D=null&classification_instrument%5B%5D=null&associated_groups%5B%5D=null&official_discovery=0&official_classification=0&at_rep_remarks=&class_rep_remarks=&frb_repeat=all&frb_repeater_of_objid=&frb_measured_redshift=0&frb_dm_range_min=&frb_dm_range_max=&frb_rm_range_min=&frb_rm_range_max=&frb_snr_range_min=&frb_snr_range_max=&frb_flux_range_min=&frb_flux_range_max=&num_page=500&display%5Bredshift%5D=1&display%5Bhostname%5D=1&display%5Bhost_redshift%5D=1&display%5Bsource_group_name%5D=1&display%5Bclassifying_source_group_name%5D=1&display%5Bdiscovering_instrument_name%5D=0&display%5Bclassifing_instrument_name%5D=0&display%5Bprograms_name%5D=0&display%5Binternal_name%5D=1&display%5BisTNS_AT%5D=0&display%5Bpublic%5D=1&display%5Bend_pop_period%5D=0&display%5Bspectra_count%5D=1&display%5Bdiscoverymag%5D=1&display%5Bdiscmagfilter%5D=1&display%5Bdiscoverydate%5D=1&display%5Bdiscoverer%5D=1&display%5Bremarks%5D=0&display%5Bsources%5D=0&display%5Bbibcode%5D=0&display%5Bext_catalogs%5D=0&display%5Brepeater_of_objid%5D=0&display%5Bdm%5D=0&display%5Bgalactic_max_dm%5D=0&display%5Bbarycentric_event_time%5D=0&display%5Bpublic_webpage%5D=0|title=TNS FRB search|access-date=2022-11-13}}

• Fast blue optical transient
• Gamma-ray burst

{{Reflist|30em}}

• {{cite web |url=http://www.astronomy.swin.edu.au/pulsar/frbcat/ |title=FRB Catalogue |publisher=Swinburne University of Technology}}
• {{cite journal |title=A repeating fast radio burst associated with a persistent radio source |year=2022 |journal=Nature|doi=10.1038/s41586-022-04755-5 |last1=Niu |first1=C.-H. |last2=Aggarwal |first2=K. |last3=Li |first3=D. |last4=Zhang |first4=X. |last5=Chatterjee |first5=S. |last6=Tsai |first6=C.-W. |last7=Yu |first7=W. |last8=Law |first8=C. J. |last9=Burke-Spolaor |first9=S. |last10=Cordes |first10=J. M. |last11=Zhang |first11=Y.-K. |last12=Ocker |first12=S. K. |last13=Yao |first13=J.-M. |last14=Wan |first14=P. |last15=Feng |first15=Y. |last16=Niino |first16=Y. |last17=Bochenek |first17=C. |last18=Cruces |first18=M. |last19=Connor |first19=L. |last20=Jiang |first20=J.-A. |last21=Dai |first21=S. |last22=Luo |first22=R. |last23=Li |first23=G.-D. |last24=Miao |first24=C.-C. |last25=Niu |first25=J.-R. |last26=Anna-Thomas |first26=R. |last27=Sydnor |first27=J. |last28=Stern |first28=D. |last29=Wang |first29=W.-Y. |last30=Yuan |first30=M. |volume=606 |issue=7916 |pages=873–877 |pmid=35676486 |pmc=9242862 |arxiv=2110.07418 |bibcode=2022Natur.606..873N |display-authors=1 }}

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