List of extraterrestrial volcanoes#Mars

{{See also|Volcanism on Io|List of volcanic features on Io}}

Image:Tvashtarvideo.gif (Io), taken from imagery from the New Horizons probe in 2007]]

Image:Tvastarpic2.jpg]]

Io, a moon of the planet Jupiter, is the most volcanically active body in the Solar System.{{cite web|url=https://science.nasa.gov/jupiter/moons/io/facts/|website=science.nasa.gov|title=Io: Facts}} Its volcanoes are believed to eject sulfur and sulfur dioxide, as well as basaltic and ultramafic silicate lavas.{{cite journal |title=Galileo observations of volcanic plumes on Io |journal=Icarus |last1=Geissler |first1=P. E. |first2=M. T. |last2=McMillan |pages=505–18 |volume=197 |issue=2 |date=2008 |doi=10.1016/j.icarus.2008.05.005 |bibcode=2008Icar..197..505G|url=https://zenodo.org/record/1259035 }}

{{See also|Volcanism on Mars|Category:Volcanoes of Mars}}

Mars has many shield volcanoes, including the largest known volcano of the Solar System, but they are all dormant if not extinct.

The most famous of these volcanoes is Olympus Mons, which is the largest known volcano in the Solar System.{{cite web|url=https://www.britannica.com/place/Olympus-Mons|website=www.britannica.com|title=Olympus Mons Information|date=1 July 2024}}

{{See also|Volcanism on Venus|Category:Volcanoes of Venus}}

On Venus, volcanic features are very numerous and quite diverse, but, like on Mars, none are known to be currently active. These volcanoes range from several to several hundred kilometers in diameter; a majority of them are shield volcanoes. In addition, Venus has unusual types of volcanoes: pancake domes and scalloped margin domes. Most small volcanoes on Venus are nameless.

{{See also|Volcanism on the Moon|Lunar mare|List of maria on the Moon}}

Due to the low viscosity of most lunar lava, volcanic mountains were seldom created. Instead, basaltic lava flooded large areas, which became lunar maria. Shield volcanoes are known from a few areas on the Moon; they are called lunar domes. Some areas of the Moon are covered with a usually dark coating, which is interpreted as pyroclastic deposits. Sometimes they form a dark halo around rilles. See also:

• Lunar dome
• Mons Rümker
• Mons Hansteen

{{See also|Mercury (planet)#Surface geology|Geology of Mercury}}

File:MESSENGER - BV Microsymposium49.jpg

Many of Mercury's basins contain smooth plains, like the lunar mare, that are believed likely to be filled with lava flows. Collapse structures possibly indicative of volcanism have been found in some craters.[http://messenger.jhuapl.edu/gallery/sciencePhotos/image.php?gallery_id=2&image_id=127 MESSENGER views an intriguing crater] {{webarchive|url=https://web.archive.org/web/20131120010308/http://messenger.jhuapl.edu/gallery/sciencePhotos/image.php?gallery_id=2&image_id=127 |date=2013-11-20 }}, NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington, 2008-01-20. Eleven volcanic domes were identified in Mariner 10 images, including a 1.4-km high dome near the centre of Odin Planitia.Katterfeld, G. N. (1984). [https://doi.org/10.1007%2FBF01961224 Volcanism on Mercury], Bulletin of Volcanology, Volume 47, Number 3, 531-535. {{doi|10.1007/BF01961224}}

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• Saturn's moon Enceladus has fissures that spew water which have been photographed erupting by NASA's Cassini–Huygens spacecraft.{{cite web|url=https://science.nasa.gov/mission/cassini/science/enceladus/|website=science.nasa.gov|title=Cassini at Enceladus}}
• Reports from NASA's Cassini–Huygens mission indicate that Saturn's moon Titan probably has volcanoes that eject water (cryovolcanoes).{{cite web|url=https://www.usgs.gov/centers/astrogeology-science-center/science/evidence-cryovolcanism-titan|website=www.usgs.gov|title=Evidence of Cryovolcanism on Titan|date=24 October 2018}}
• Triton, a moon of the planet Neptune, has cryovolcanic geysers that are believed to eject nitrogen, dust, or methane compounds, as well as possible cryovolcanic features.{{Cite journal |doi=10.3390/rs13173476 |title=Triton: Topography and Geology of a Probable Ocean World with Comparison to Pluto and Charon |date=September 2021 |last1=Schenk | first1=Paul |last2=Beddingfield |first2=Chloe |last3=Bertrand |first3=Tanguy |display-authors=et al. |journal=Remote Sensing | volume=13 |issue=17 |pages=3476 |doi-access=free |bibcode=2021RemS...13.3476S }}
• Pluto has features that may be cryovolcanoes, including Wright Mons and nearby Piccard Mons.{{cite web|url=https://pluto.jhuapl.edu/News-Center/News-Article.php?page=20151109|website=plute.jhuapl.edu|title=At Pluto, Possible Ice Volcanoes Found|date=9 November 2015}}

• Cryovolcano
• :Category:Extraterrestrial mountains
• Areography
• Lists of volcanoes

{{reflist}}

• [http://volcano.oregonstate.edu/extraterrestrial Extraterrestrial Volcanoes], Volcano World
• [http://www.volcanolive.com/solarsystem.html Solar System Volcanoes], Volcano Live

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Extraterrestrial

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