List of interstellar radio messages#Classification of interstellar radio messages

This is a list of notable interstellar radio messages (IRMs) transmitted from Earth. Many of these were sent in the aim of searching for extra-terrestrial intelligence (SETI), and are often called 'active SETI' or 'METI' (Messages to Extra-Terrestrial Intelligence) projects.

Notable transmissions

Stars to which messages were sent include:

class="wikitable sortable"
style="background:#3ea99f;" ! Target ! Distance (ly) ! Sent ! data-sort-type="isodate" \| Expected Arrival ! Message
Messier 13	25,000	{{dts\|format=dmy\|1974\|11\|16}}	25974	Arecibo message
Altair \|16.7 \|{{Date table sorting\|15 August 1983}} \|2000 \|A Message to Altair (CALL to the COSMOS'83) {{Cite web \|last=NAGAUCHI \|first=Yosuke \|date=2008-05-12 \|title=【科学】届け宇宙人への電子メール２５年前に送信、７年後にも返信来る！？ (1/2ページ) \|url=http://sankei.jp.msn.com/culture/academic/080512/acd0805120804006-n1.htm \|url-status=dead \|archive-url=https://web.archive.org/web/20080517080737/http://sankei.jp.msn.com/culture/academic/080512/acd0805120804006-n1.htm \|archive-date=2008-05-17 \|access-date=2025-02-18 \|website=MSN産経ニュース (MSN Sankei News) \|language=ja}}{{Cite web \|last=Endo \|first=Kazuki \|date=August 20, 2023 \|title='Anybody there?' Astronomers waiting for a reply from Altai \|url=https://www.asahi.com/ajw/articles/14985246 \|access-date=February 18, 2025 \|website=The Asahi Shimbun}}
16 Cyg A	69	{{dts\|format=dmy\|1999\|05\|24}}	2068	rowspan="4" \| Cosmic Call 1
15 Sge	57	{{dts\|format=dmy\|1999\|06\|30}}	2056
?	67	{{dts\|format=dmy\|1999\|06\|30}}	2066
Gl 777	52	{{dts\|format=dmy\|1999\|07\|01}}	2051
?	68	{{dts\|format=dmy\|2001\|08\|29}}	2069	rowspan="6" \| Teen Age Message
47 UMa	46	{{dts\|format=dmy\|2001\|09\|03}}	2047
37 Gem	56	{{dts\|format=dmy\|2001\|09\|03}}	2057
?	57	{{dts\|format=dmy\|2001\|09\|03}}	2058
?	51	{{dts\|format=dmy\|2001\|09\|04}}	2052
?	57	{{dts\|format=dmy\|2001\|09\|04}}	2058
Gliese 49	32	{{dts\|format=dmy\|2003\|07\|06}}	2036	rowspan="5" \| Cosmic Call 2
Gliese 208	37	{{dts\|format=dmy\|2003\|07\|06}}	2040
55 Cnc	41	{{dts\|format=dmy\|2003\|07\|06}}	2044
HD 10307	41	{{dts\|format=dmy\|2003\|07\|06}}	2044
47 UMa	46	{{dts\|format=dmy\|2003\|07\|06}}	2049
Polaris	433	{{dts\|format=dmy\|2008\|02\|04}}	2439	Across the Universe
Gliese 581	20.3	{{dts\|format=dmy\|2008\|10\|09}}	2029	A Message From Earth
Gliese 581	20.3	{{dts\|format=dmy\|2009\|08\|28}}	2030	Hello From Earth
TZ Arietis \|14.6 \|{{Date table sorting\|09 November 2009}} \|2024 \| rowspan="3" \|RuBisCo Stars (RuBisCO genetic sequence){{citation \|last=Chandler \|first=David L. \|title=ET: Check your voicemail \|date=24 November 2009 \|url=http://web.mit.edu/newsoffice/2009/sketch-rubisco.html \|publisher=MIT News}}
Teegarden's Star \|12.5 \|{{Date table sorting\|09 November 2009}} \|2021
Kappa¹ Ceti \|29.8 \|{{Date table sorting\|10 November 2009}} \|2039
HIP 34511 \|140{{Cite web \|title=HIP 34511 \|url=https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP%2034511&submit=SIMBAD+search \|access-date=2025-02-18 \|website=simbad.u-strasbg.fr}} \|{{Date table sorting\|15 August 2012}} \|2152 \| rowspan="3" \|Wow! Signal Reply{{Cite news \|last=Memmott \|first=Mark \|date=2012-08-15 \|title=Will E.T. Hear Us? Reply To 'WOW! Signal' Gets Beamed Into Space Today \|url=https://www.npr.org/sections/thetwo-way/2012/08/15/158827877/will-e-t-hear-us-reply-to-wow-signal-gets-beamed-into-space-today/ \|access-date=2025-02-18 \|work=NPR \|language=en}}
37 Gem (HIP 33277) \|57{{Cite web \|title=HIP 33277 \|url=https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP%2033277&submit=SIMBAD+search \|access-date=2025-02-18 \|website=simbad.u-strasbg.fr}} \|{{Date table sorting\|15 August 2012}} \|2069
HIP 43587 \|41{{Cite web \|title=HIP 43587 \|url=https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP%2043587&submit=SIMBAD+search \|access-date=2025-02-18 \|website=simbad.u-strasbg.fr}} \|{{Date table sorting\|15 August 2012}} \|2053
Gliese 526 \|17.6 \|{{Date table sorting\|2013}} \|2031 \|Lone Signal
Polaris	433	{{dts\|format=dmy\|2016\|10\|10}}	2450	A Simple Response to an Elemental Message{{cite web \|date=28 July 2016 \|title=A Simple Response \|url=http://blogs.esa.int/rocketscience/2016/07/28/a-simple-response \|accessdate=6 October 2016 \|website=European Space Agency official website}}
rowspan="2" \| Luyten b	rowspan="2" \| 12.36	{{dts\|format=dmy\|2017\|10\|16}}	2030	rowspan="2" \| Sónar Calling GJ273b{{cite magazine \|date=16 November 2017 \|title=How to send a message to another planet \|url=https://www.economist.com/news/science-and-technology/21731380-including-clock-some-trigonometry-and-some-jean-michel-jarre-how-send/ \|access-date=19 November 2017 \|magazine=The Economist}}{{cite web \|title=Sónar Calling GJ 273b \|url=https://www.sonarcalling.com/en/ \|access-date=1 May 2021 \|website=Sónar Calling \|publisher=Sónar Music Festival}}
{{Date table sorting\|14 May 2018}} \|2031

Other projects

Some other projects include:

Joe Davis (artist)#Other works{{Cite web |date=13 February 2009 |title=BIOMEDIALE |url=http://biomediale.ncca-kaliningrad.ru:80/?blang=eng&author=davis |archive-url=https://web.archive.org/web/20090213181823/http://biomediale.ncca-kaliningrad.ru:80/?blang=eng&author=davis |archive-date=2009-02-13 |access-date=2024-03-09}}{{Cite web |last=Gibbs |first=W. Wayt |date=2001-04-01 |title=Art as a Form of Life |url=https://www.scientificamerican.com/article/art-as-a-form-of-life/ |url-status=live |archive-url=https://web.archive.org/web/20240620235819/https://static.scientificamerican.com/sciam/cache/file/6CE12878-1E5E-4C30-AB8572F8E69B2A05.pdf |archive-date=2024-06-20 |access-date=2025-04-02 |website=Scientific American |language=en |doi=10.1038/scientificamerican0401-40}}
Discovery Channel Message (2005){{Citation needed|date=May 2010}}
Craigslist Messages (2005){{citation |title=Deep Space Network Frequently Asked Questions |url=http://deepspacecom.net/faq.html |url-status=dead |publisher=Deep Space Communications Network |archiveurl=https://web.archive.org/web/20100104092356/http://deepspacecom.net/faq.html |archivedate=2010-01-04}}{{citation |title=List in Space: Calling the Cosmos Gets Commercial |date=23 March 2005 |url=http://www.space.com/businesstechnology/technology/050323_space_messages.html |publisher=Space_com}}
CNES Cosmic Connexion (2006){{citation |title=Connecting with the Cosmos |date=26 January 2006 |url=http://www.cnes.fr/web/CNES-en/4374-projet-cosmic-connexion.php |archive-url=https://web.archive.org/web/20100513184832/http://www.cnes.fr/web/CNES-en/4374-projet-cosmic-connexion.php |archive-date=2010-05-13 |url-status=dead |publisher=CNES}}
Doritos Advert (2008){{citation |title=Doritos Makes History With World's First ET Advert |date=13 June 2008 |url=http://www.spacedaily.com/reports/Doritos_Makes_History_With_World_First_ET_Advert_999.html |publisher=Spacedaily.com}}
Sent Forever{{citation |last=Harris |first=Mark |title=Is Sent Forever the worst Apollo 11 tie-in? |date=16 September 2009 |url=http://www.techradar.com/news/phone-and-communications/is-sent-forever-the-worst-apollo-11-tie-in--617077 |url-status=dead |publisher=TechRadar |archiveurl=https://web.archive.org/web/20100302013157/http://www.techradar.com/news/phone-and-communications/is-sent-forever-the-worst-apollo-11-tie-in--617077 |archivedate=2010-03-02}}
Penguin UK{{citation |last=Colvile |first=Robert |title=Calling ET: Your chance to send a message to alien life |date=9 February 2010 |url=https://www.telegraph.co.uk/science/7190726/Calling-ET-Your-chance-to-send-a-message-to-alien-life.html |archive-url=https://web.archive.org/web/20100211021104/http://www.telegraph.co.uk/science/7190726/Calling-ET-Your-chance-to-send-a-message-to-alien-life.html |archive-date=2010-02-11 |url-status=dead |publisher=The Daily Telegraph}}

Whilst not an interstellar message, it is also worth mentioning The Morse Message (1962),[http://www.lightspeedmagazine.com/nonfiction/you-never-get-a-seventh-chance-to-make-a-first-impression-an-awkward-history-of-our-space-transmissions/ An Awkward History of Our Space Transmissions] which was sent to Venus.

References

External links

[http://www.sciencedirect.com/science/article/pii/S0094576511001652 Classification of interstellar radio messages]
[https://web.archive.org/web/20090711205859/http://seedmagazine.com/content/article/who_speaks_for_earth Who Speaks for Earth?]
[https://www.newscientist.com/article/dn18417-earth-calling-a-short-history-of-radio-messages-to-et.html?full=true Earth calling: A short history of radio messages to ET]
[http://www.cplire.ru/html/ra&sr/irm/index.html Interstellar Radio Messages]
[http://www.scoop.it/t/seti-the-search-for-extraterrestrial-intelligence/p/4011923431/2013/11/30/seti-terminating-the-transmission SETI: Terminating the transmission]
[https://www.fourmilab.ch/goldberg/setimsg.html Self-Decoding Messages]
[https://breakthroughinitiatives.org/Initiative/2 Breakthrough Message]

Category:Search for extraterrestrial intelligence

Category:Time capsules

Category:Technology in society