<P> This is a list of the tallest mountains in the Solar System . The tallest peak or peaks on worlds where significant mountains have been measured are given; in some cases, the tallest peaks of different classes on a world are also listed . At 21.9 km, the enormous shield volcano Olympus Mons on Mars is the tallest mountain on any planet . For 40 years, following its discovery in 1971, it was the tallest mountain known in the Solar System . However, in 2011, the central peak of the crater Rheasilvia on the asteroid and protoplanet Vesta was found to be of comparable height . </P> <P> The heights are given from base to peak, because there is no nonarbitrary equivalent to height above sea level on other worlds . </P> <Table> <Tr> <Th> World </Th> <Th> Tallest peak (s) </Th> <Th> Base - to - peak height </Th> <Th>% of radius </Th> <Th> Origin </Th> <Th> Notes </Th> </Tr> <Tr> <Td> 01 Mercury </Td> <Td> Caloris Montes </Td> <Td> 030 ≤ 3 km (1.9 mi) </Td> <Td> 0123 0.12 </Td> <Td> impact </Td> <Td> Formed by the Caloris impact </Td> </Tr> <Tr> <Td> 02 Venus </Td> <Td> Skadi Mons </Td> <Td> 064 6.4 km (4.0 mi) (approx .) </Td> <Td> 0106 0.11 </Td> <Td> tectonic </Td> <Td> Has radar - bright slopes due to metallic Venus snow, possibly lead sulfide </Td> </Tr> <Tr> <Td> Maat Mons </Td> <Td> 049 4.9 km (3.0 mi) (approx .) </Td> <Td> 0081 0.081 </Td> <Td> volcanic </Td> <Td> Highest volcano on Venus </Td> </Tr> <Tr> <Td> 03 Earth </Td> <Td> Mauna Kea and Mauna Loa </Td> <Td> 102 10.2 km (6.3 mi) </Td> <Td> 0160 0.16 </Td> <Td> volcanic </Td> <Td> Just 4.2 km (2.6 mi) of this is above sea level </Td> </Tr> <Tr> <Td> Haleakala </Td> <Td> 091 9.1 km (5.7 mi) </Td> <Td> 0142 0.14 </Td> <Td> volcanic </Td> <Td> Rises 3.1 km above sea level </Td> </Tr> <Tr> <Td> Pico del Teide </Td> <Td> 075 7.5 km (4.7 mi) </Td> <Td> 0118 0.12 </Td> <Td> volcanic </Td> <Td> Rises 3.7 km above sea level </Td> </Tr> <Tr> <Td> Denali </Td> <Td> 056 5.3 to 5.9 km (3.3 to 3.7 mi) </Td> <Td> 0093 0.093 </Td> <Td> tectonic </Td> <Td> Tallest mountain base - to - peak on land </Td> </Tr> <Tr> <Td> Mount Everest </Td> <Td> 041 3.6 to 4.6 km (2.2 to 2.9 mi) </Td> <Td> 0072 0.072 </Td> <Td> tectonic </Td> <Td> 4.6 km on north face, 3.6 km on south face; listed only because it has the highest elevation (8.8 km) above sea level </Td> </Tr> <Tr> <Td> 04 Moon </Td> <Td> Mons Huygens </Td> <Td> 055 5.5 km (3.4 mi) </Td> <Td> 0317 0.32 </Td> <Td> impact </Td> <Td> Formed by the Imbrium impact </Td> </Tr> <Tr> <Td> Mons Hadley </Td> <Td> 045 4.5 km (2.8 mi) </Td> <Td> 0259 0.26 </Td> <Td> impact </Td> <Td> Formed by the Imbrium impact </Td> </Tr> <Tr> <Td> Mons Rümker </Td> <Td> 011 1.1 km (0.68 mi) </Td> <Td> 0063 0.063 </Td> <Td> volcanic </Td> <Td> Largest volcanic construct on the Moon </Td> </Tr> <Tr> <Td> 05 Mars </Td> <Td> Olympus Mons </Td> <Td> 219 21.9 km (14 mi) </Td> <Td> 0646 0.65 </Td> <Td> volcanic </Td> <Td> Rises 26 km above northern plains, 1000 km away . Summit calderas are 60 x 80 km wide, up to 3.2 km deep; scarp around margin is up to 8 km high . </Td> </Tr> <Tr> <Td> Ascraeus Mons </Td> <Td> 149 14.9 km (9.3 mi) </Td> <Td> 0440 0.44 </Td> <Td> volcanic </Td> <Td> Tallest of the three Tharsis Montes </Td> </Tr> <Tr> <Td> Elysium Mons </Td> <Td> 126 12.6 km (7.8 mi) </Td> <Td> 0372 0.37 </Td> <Td> volcanic </Td> <Td> Highest volcano in Elysium </Td> </Tr> <Tr> <Td> Arsia Mons </Td> <Td> 117 11.7 km (7.3 mi) </Td> <Td> 0345 0.35 </Td> <Td> volcanic </Td> <Td> Summit caldera is 108 to 138 km (67 to 86 mi) across </Td> </Tr> <Tr> <Td> Pavonis Mons </Td> <Td> 084 8.4 km (5.2 mi) </Td> <Td> 0248 0.25 </Td> <Td> volcanic </Td> <Td> Summit caldera is 4.8 km (3.0 mi) deep </Td> </Tr> <Tr> <Td> Anseris Mons </Td> <Td> 062 6.2 km (3.9 mi) </Td> <Td> 0183 0.18 </Td> <Td> impact </Td> <Td> Among the highest nonvolcanic peaks on Mars, formed by the Hellas impact </Td> </Tr> <Tr> <Td> Aeolis Mons ("Mount Sharp") </Td> <Td> 050 4.5 to 5.5 km (2.8 to 3.4 mi) </Td> <Td> 0162 0.16 </Td> <Td> deposition and erosion </Td> <Td> Formed from deposits in Gale crater; the MSL rover has been ascending it since November 2014 . </Td> </Tr> <Tr> <Td> 06 Vesta </Td> <Td> Rheasilvia central peak </Td> <Td> 220 22 km (14 mi) </Td> <Td> 8370 8.4 </Td> <Td> impact </Td> <Td> Almost 200 km (120 mi) wide . See also: List of largest craters in the Solar System </Td> </Tr> <Tr> <Td> 07 Ceres </Td> <Td> Ahuna Mons </Td> <Td> 040 4 km (2.5 mi) </Td> <Td> 0853 0.85 </Td> <Td> cryovolcanic </Td> <Td> Isolated steep - sided dome in relatively smooth area; max . height of ~ 5 km on steepest side; roughly antipodal to largest impact basin on Ceres </Td> </Tr> <Tr> <Td> 08 Io </Td> <Td> Boösaule Montes "South" </Td> <Td> 178 17.5 to 18.2 km (10.9 to 11.3 mi) </Td> <Td> 0999 1.0 </Td> <Td> tectonic </Td> <Td> Has a 15 km (9 mi) high scarp on its SE margin </Td> </Tr> <Tr> <Td> Ionian Mons east ridge </Td> <Td> 127 12.7 km (7.9 mi) (approx .) </Td> <Td> 0697 0.70 </Td> <Td> tectonic </Td> <Td> Has the form of a curved double ridge </Td> </Tr> <Tr> <Td> Euboea Montes </Td> <Td> 118 10.3 to 13.4 km (6.4 to 8.3 mi) </Td> <Td> 0736 0.74 </Td> <Td> tectonic </Td> <Td> A NW flank landslide left a 25,000 km debris apron </Td> </Tr> <Tr> <Td> unnamed (245 ° W, 30 ° S) </Td> <Td> 020 2.5 km (1.6 mi) (approx .) </Td> <Td> 013 0.14 </Td> <Td> volcanic </Td> <Td> One of the tallest of Io's many volcanoes, with an atypical conical form </Td> </Tr> <Tr> <Td> 09 Mimas </Td> <Td> Herschel central peak </Td> <Td> 070 7 km (4 mi) (approx .) </Td> <Td> 3530 3.5 </Td> <Td> impact </Td> <Td> See also: List of largest craters in the Solar System </Td> </Tr> <Tr> <Td> 10 Dione </Td> <Td> Janiculum Dorsa </Td> <Td> 015 1.5 km (0.9 mi) </Td> <Td> 0267 0.27 </Td> <Td> tectonic </Td> <Td> Surrounding crust depressed ca. 0.3 km . </Td> </Tr> <Tr> <Td> 11 Titan </Td> <Td> Mithrim Montes </Td> <Td> 03337 ≤ 3.3 km (2.1 mi) </Td> <Td> 013 0.13 </Td> <Td> tectonic </Td> <Td> May have formed due to global contraction </Td> </Tr> <Tr> <Td> Doom Mons </Td> <Td> 0145 1.45 km (0.90 mi) </Td> <Td> 0056 0.056 </Td> <Td> cryovolcanic </Td> <Td> Adjacent to Sotra Patera, a 1.7 km (1.1 mi) deep collapse feature </Td> </Tr> <Tr> <Td> 12 Iapetus </Td> <Td> equatorial ridge </Td> <Td> 200 20 km (12 mi) (approx .) </Td> <Td> 2720 2.7 </Td> <Td> uncertain </Td> <Td> Individual peaks have not been measured </Td> </Tr> <Tr> <Td> 13 Oberon </Td> <Td> unnamed ("limb mountain") </Td> <Td> 110 11 km (7 mi) (approx .) </Td> <Td> 1440 1.4 </Td> <Td> impact (?) </Td> <Td> A value of 6 km was given shortly after the Voyager 2 encounter </Td> </Tr> <Tr> <Td> 14 Pluto </Td> <Td> Piccard Mons </Td> <Td> 056 ~ 5.6 km (3.5 mi) </Td> <Td> 0473 0.47 </Td> <Td> cryovolcanic (?) </Td> <Td> ~ 220 km across </Td> </Tr> <Tr> <Td> Wright Mons (</Td> <Td> 040 ~ 4.0 km (2.5 mi) </Td> <Td> 0330 0.34 </Td> <Td> cryovolcanic (?) </Td> <Td> ~ 160 km across; summit depression ~ 56 km across </Td> </Tr> <Tr> <Td> Tenzing Montes </Td> <Td> 035 ≤ 3.5 km (2.2 mi) </Td> <Td> 0295 0.30 </Td> <Td> tectonic (?) </Td> <Td> Composed of water ice; named after Tenzing Norgay </Td> </Tr> </Table> <Tr> <Th> World </Th> <Th> Tallest peak (s) </Th> <Th> Base - to - peak height </Th> <Th>% of radius </Th> <Th> Origin </Th> <Th> Notes </Th> </Tr>

Top 10 biggest mountains in the solar system
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