This is a list of the tallest mountains in the Solar System. This list includes peaks on all celestial bodies where significant mountains have been detected. For some celestial bodies, different peaks are given across different types of measurement. The solar system's tallest mountain is possibly the Olympus Mons on Mars with an altitude of 21.9 to 26 km. The central peak of Rheasilvia on the asteroid Vesta is also a candidate to be the tallest, with an estimated at up to between 20 and 25 km from peak to base.
Heights are given from base to peak (although a precise definition for mean base level is lacking). Peak elevations above sea level are only available on Earth, and possibly Titan. [1] On other planets, peak elevations above an equipotential surface or a reference ellipsoid could be used if enough data is available for the calculation, but this is often not the case.
Planet | Tallest peak(s) | Base-to-peak height | % of radius [n 1] | Origin | Notes |
---|---|---|---|---|---|
Mercury | Caloris Montes | ≤ 3 km (1.9 mi) [2] [3] | 0.12 | impact [4] | Formed by the Caloris impact |
Venus | Skadi Mons (Maxwell Montes massif) | 6.4 km (4.0 mi) [5] (11 km above mean) | 0.11 | tectonic [6] | Has radar-bright slopes due to metallic Venus snow, possibly lead sulfide [7] |
Maat Mons | 4.9 km (3.0 mi) (approx.) [8] | 0.081 | volcanic [9] | Highest volcano on Venus | |
Earth [n 2] | Mauna Kea and Mauna Loa | 10.2 km (6.3 mi) [11] | 0.16 | volcanic | 4.2 km (2.6 mi) of this is above sea level |
Haleakalā | 9.1 km (5.7 mi) [12] | 0.14 | volcanic | Rises 3.1 km above sea level [12] | |
Pico del Teide | 7.5 km (4.7 mi) [13] | 0.12 | volcanic | Rises 3.7 km above sea level [13] | |
Denali | 5.3 to 5.9 km (3.3 to 3.7 mi) [14] | 0.093 | tectonic | Tallest mountain base-to-peak on land [15] [n 3] | |
Mount Everest | 3.6 to 4.6 km (2.2 to 2.9 mi) [16] | 0.072 | tectonic | 4.6 km on north face, 3.6 km on south face; [n 4] highest elevation (8.8 km) above sea level, as well as by wet and dry prominence (but not among the tallest from base to peak, and in distance to Earth's center Mt Chimborazo rises highest). | |
Moon [n 5] | Mons Huygens | 5.3 km (3.3 mi) [19] | 0.31 | impact | Formed by the Imbrium impact. |
Mons Mouton | 6 km (3.7 mi) [19] | 0.35 | impact | Possibly formed by the South Pole-Aitken basin impact. | |
Southern Farside Mountain | 7 km (4.3 mi) [19] | 0.40 | impact | Informal name of the Moon's tallest free-standing mountain. Possibly formed by the South Pole-Aitken basin impact. Not highest lunar peak by prominence, which would be Selenean summit. | |
Mons Hadley | 4.5 km (2.8 mi) [20] [21] | 0.26 | impact | Formed by the Imbrium impact | |
Mons Rümker | 1.3 km (0.81 mi) [22] | 0.063 | volcanic | Largest volcanic construct on the Moon [22] | |
Mars | Olympus Mons | 21.9–26 km (13.6–16.2 mi; 72,000–85,000 ft) [n 6] [23] [24] [25] | 0.65 | volcanic | Tallest mountain in the Solar System. Rises 26 km above northern plains, [26] (dry prominence) 1000 km away. Summit calderas are 60 x 80 km wide, up to 3.2 km deep; [25] scarp around margin is up to 8 km high. [27] A shield volcano, the mean flank slope is a modest 5.2 degrees. [24] |
Ascraeus Mons | 14.9 km (9.3 mi) [24] | 0.44 | volcanic | Tallest of the three Tharsis Montes | |
Elysium Mons | 12.6 km (7.8 mi) [24] | 0.37 | volcanic | Highest volcano in Elysium | |
Arsia Mons | 11.7 km (7.3 mi) [24] | 0.35 | volcanic | Summit caldera is 108 to 138 km (67 to 86 mi) across [24] | |
Pavonis Mons | 8.4 km (5.2 mi) [24] | 0.25 | volcanic | Summit caldera is 4.8 km (3.0 mi) deep [24] | |
Anseris Mons | 6.2 km (3.9 mi) [28] | 0.18 | impact | Among the highest nonvolcanic peaks on Mars, formed by the Hellas impact | |
Aeolis Mons ("Mount Sharp") | 4.5 to 5.5 km (2.8 to 3.4 mi) [29] [n 7] | 0.16 | deposition and erosion [n 8] | Formed from deposits in Gale crater; [34] the MSL rover has been ascending it since November 2014. [35] | |
Vesta | Rheasilvia central peak | 20–25 km (12–16 mi; 66,000–82,000 ft) [n 9] [36] [37] | 8.4 | impact | Almost 200 km (120 mi) wide. See also: List of largest craters in the Solar System |
Ceres | Ahuna Mons | 4 km (2.5 mi) [38] | 0.85 | cryovolcanic [39] | Isolated steep-sided dome in relatively smooth area; max. height of ~ 5 km on steepest side; roughly antipodal to largest impact basin on Ceres |
Io | Boösaule Montes "South" [40] | 17.5 to 18.2 km (10.9 to 11.3 mi) [41] | 1.0 | tectonic | Has a 15 km (9 mi) high scarp on its SE margin [42] |
Ionian Mons east ridge | 12.7 km (7.9 mi) (approx.) [42] [43] | 0.70 | tectonic | Has the form of a curved double ridge | |
Euboea Montes | 10.5 to 13.4 km (6.5 to 8.3 mi) [44] | 0.74 | tectonic | A NW flank landslide left a 25,000 km3 debris apron [45] [n 10] | |
unnamed (245° W, 30° S) | 2.5 km (1.6 mi) (approx.) [46] [47] | 0.14 | volcanic | One of the tallest of Io's many volcanoes, with an atypical conical form [47] [n 11] | |
Mimas | Herschel central peak | 7 km (4 mi) (approx.) [49] | 3.5 | impact | See also: List of largest craters in the Solar System |
Dione | Janiculum Dorsa | 1.5 km (0.9 mi) [50] | 0.27 | tectonic [n 12] | Surrounding crust depressed ca. 0.3 km. |
Titan | Mithrim Montes | ≤ 3.3 km (2.1 mi) [53] | 0.13 | tectonic [53] | May have formed due to global contraction [54] |
Doom Mons | 1.45 km (0.90 mi) [55] | 0.056 | cryovolcanic [55] | Adjacent to Sotra Patera, a 1.7 km (1.1 mi) deep collapse feature [55] | |
Iapetus | equatorial ridge | 20 km (12 mi) (approx.) [56] | 2.7 | uncertain [n 13] | Individual peaks have not been measured |
Oberon | unnamed ("limb mountain") | 11 km (7 mi) (approx.) [49] | 1.4 | impact (?) | A value of 6 km was given shortly after the Voyager 2 encounter [60] |
Pluto | Tenzing Montes, peak "T2" | ~6.2 km (3.9 mi) [61] | 0.52 | tectonic [62] (?) | Composed of water ice; [62] named after Tenzing Norgay [63] |
Piccard Mons [64] [65] | ~5.5 km (3.4 mi) [61] | 0.46 | cryovolcanic (?) | ~220 km across; [66] central depression is 11 km deep [61] | |
Wright Mons [64] [65] | ~4.7 km (2.9 mi) [61] | 0.40 | cryovolcanic (?) | ~160 km across; [64] summit depression ~56 km across [67] and 4.5 km deep [61] | |
Charon | Butler Mons [68] | ≥ 4.5 km (2.8 mi) [68] | 0.74 | tectonic (?) | Vulcan Planitia, the southern plains, has several isolated peaks, possibly tilted crustal blocks [68] |
Dorothy central peak [68] | ~4.0 km (2.5 mi) [68] | 0.66 | impact | North polar impact basin Dorothy, Charon's largest, is ~240 km across and 6 km deep [68] | |
2002 MS4 | unnamed | 20–29 km (12–18 mi) | 6.3 | ? | Discovered by stellar occultation; it is unclear whether this feature may be a genuine topographic peak or a transiting/occulting satellite. [69] |
The following images are shown in order of decreasing base-to-peak height.
Olympus Mons is a large shield volcano on Mars. It is over 21.9 km high as measured by the Mars Orbiter Laser Altimeter (MOLA), about 2.5 times the elevation of Mount Everest above sea level. It is Mars's tallest volcano, its tallest planetary mountain, and is approximately tied with Rheasilvia on Vesta as the tallest mountain currently discovered in the Solar System. It is associated with the volcanic region of Tharsis Montes. It last erupted 25 million years ago.
Ascraeus Mons is a large shield volcano located in the Tharsis region of the planet Mars. It is the northernmost and tallest of three shield volcanoes collectively known as the Tharsis Montes.
Arsia Mons is the southernmost of three volcanoes on the Tharsis bulge near the equator of the planet Mars. To its north is Pavonis Mons, and north of that is Ascraeus Mons. The tallest volcano in the Solar System, Olympus Mons, is to its northwest. Its name comes from a corresponding albedo feature on a map by Giovanni Schiaparelli, which he named in turn after the legendary Roman forest of Arsia Silva. Historically, it was known as Nodus Gordii before being renamed.
Hellas Planitia is a plain located within the huge, roughly circular impact basin Hellas located in the southern hemisphere of the planet Mars. Hellas is the third- or fourth-largest known impact crater in the Solar System. The basin floor is about 7,152 m (23,465 ft) deep, 3,000 m (9,800 ft) deeper than the Moon's South Pole-Aitken basin, and extends about 2,300 km (1,400 mi) east to west. It is centered at 42.4°S 70.5°E. It features the lowest point on Mars, serves as a known source of global dust storms, and may have contained lakes and glaciers. Hellas Planitia spans the boundary between the Hellas quadrangle and the Noachis quadrangle.
Io, or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter. Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water by atomic ratio of any known astronomical object in the Solar System. It was discovered in 1610 by Galileo Galilei and was named after the mythological character Io, a priestess of Hera who became one of Zeus's lovers.
A cryovolcano is a type of volcano that erupts gases and volatile material such as liquid water, ammonia, and hydrocarbons. The erupted material is collectively referred to as cryolava; it originates from a reservoir of subsurface cryomagma. Cryovolcanic eruptions can take many forms, such as fissure and curtain eruptions, effusive cryolava flows, and large-scale resurfacing, and can vary greatly in output volumes. Immediately after an eruption, cryolava quickly freezes, constructing geological features and altering the surface.
Hecates Tholus is a Martian volcano, notable for results from the European Space Agency's Mars Express mission which indicate a major eruption took place 350 million years ago. The eruption created a caldera 10 km in diameter on the volcano's western flank.
Elysium, located in the Elysium and Cebrenia quadrangles, is the second largest volcanic region on Mars, after Tharsis. The region includes the volcanoes Hecates Tholus, Elysium Mons and Albor Tholus. The province is centered roughly on Elysium Mons at 24.7°N 150°E. Elysium Planitia is a broad plain to the south of Elysium, centered at 3.0°N 154.7°E. Another large volcano, Apollinaris Mons, lies south of Elysium Planitia and is not part of the province. Besides having large volcanoes, Elysium has several areas with long trenches, called fossa or fossae (plural) on Mars. They include the Cerberus Fossae, Elysium Fossae, Galaxias Fossae, Hephaestus Fossae, Hyblaeus Fossae, Stygis Fossae and Zephyrus Fossae.
Elysium Mons is a volcano on Mars located in the volcanic province Elysium, at 25.02°N 147.21°E, in the Martian eastern hemisphere. It stands about 12.6 km (41,000 ft) above its base, and about 14.1 km (46,000 ft) above the Martian datum, making it the third tallest Martian mountain in terms of relief and the fourth highest in elevation. Its diameter is about 240 km (150 mi), with a summit caldera about 14 km (8.7 mi) across. It is flanked by the smaller volcanoes Hecates Tholus to the northeast, and Albor Tholus to the southeast.
The geology of Mars is the scientific study of the surface, crust, and interior of the planet Mars. It emphasizes the composition, structure, history, and physical processes that shape the planet. It is analogous to the field of terrestrial geology. In planetary science, the term geology is used in its broadest sense to mean the study of the solid parts of planets and moons. The term incorporates aspects of geophysics, geochemistry, mineralogy, geodesy, and cartography. A neologism, areology, from the Greek word Arēs (Mars), sometimes appears as a synonym for Mars's geology in the popular media and works of science fiction. The term areology is also used by the Areological Society.
Tooting is an impact crater with volcanic features at 23.1°N, 207.1°E, in Amazonis Planitia, due west of the volcano Olympus Mons, on Mars. It was identified by planetary geologist Peter Mouginis-Mark in September 2004. Scientists estimate that its age is on the order of hundreds of thousands of years, which is relatively young for a Martian crater. A later study confirms this order of magnitude estimate. A preliminary paper describing the geology and geometry of Tooting was published in 2007 by the journal Meteoritics and Planetary Science, vol. 42, pages 1615–1625. Further papers have been published, including a 2010 analysis of flows on the walls of Tooting crater by A. R. Morris et al., and a 2012 review paper by P.J. Mouginis-Mark and J.M. Boyce in Chemie der Erde Geochemistry, vol. 72, p. 1–23. A geologic map has also been submitted in 2012 to the U.S. Geological Survey for consideration and future publication.
Volcanic activity, or volcanism, has played a significant role in the geologic evolution of Mars. Scientists have known since the Mariner 9 mission in 1972 that volcanic features cover large portions of the Martian surface. These features include extensive lava flows, vast lava plains, and the largest known volcanoes in the Solar System. Martian volcanic features range in age from Noachian to late Amazonian, indicating that the planet has been volcanically active throughout its history, and some speculate it probably still is so today. Both Mars and Earth are large, differentiated planets built from similar chondritic materials. Many of the same magmatic processes that occur on Earth also occurred on Mars, and both planets are similar enough compositionally that the same names can be applied to their igneous rocks.
The Tharsis quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Tharsis quadrangle is also referred to as MC-9 . The name Tharsis refers to a land mentioned in the Bible. It may be at the location of the old town of Tartessus at the mouth of Guadalquivir.
Ceraunius Tholus is a volcano on Mars located in the Tharsis quadrangle at 24.25° north latitude and 262.75° east longitude, part of the Uranius group of volcanoes. It is 130 kilometres (81 mi) across, approximately 8,500 metres (27,887 ft) high and is named after a classical albedo feature name.
Mount Sharp, officially Aeolis Mons, is a mountain on Mars. It forms the central peak within Gale crater and is located around 5.08°S 137.85°E, rising 5.5 km (18,000 ft) high from the valley floor. Its ID in the United States Geological Survey's Gazetteer of Planetary Nomenclature is 15000.
Mons is a mountain on a celestial body. The term is used in planetary nomenclature: it is a part of the international names of such features. It is capitalized and usually stands after the proper given name, but stands before it in the case of lunar mountains.
PateraPAT-ər-ə is an irregular crater, or a complex crater with scalloped edges on a celestial body. Paterae can have any origin, although the majority of them were created by volcanism. The term comes from Latin, where it refers to a shallow bowl used in antique cultures.