Volcanoes on other celestial bodies Volcano

the tvashtar volcano erupts plume 330 km (205 mi) above surface of jupiter s moon io.

the earth s moon has no large volcanoes , no current volcanic activity, although recent evidence suggests may still possess partially molten core. however, moon have many volcanic features such maria (the darker patches seen on moon), rilles , domes.

the planet venus has surface 90% basalt, indicating volcanism played major role in shaping surface. planet may have had major global resurfacing event 500 million years ago, scientists can tell density of impact craters on surface. lava flows widespread , forms of volcanism not present on earth occur well. changes in planet s atmosphere , observations of lightning have been attributed ongoing volcanic eruptions, although there no confirmation of whether or not venus still volcanically active. however, radar sounding magellan probe revealed evidence comparatively recent volcanic activity @ venus s highest volcano maat mons, in form of ash flows near summit , on northern flank.

olympus mons (latin, mount olympus ), located on planet mars, tallest known mountain in solar system.

there several extinct volcanoes on mars, 4 of vast shield volcanoes far bigger on earth. include arsia mons, ascraeus mons, hecates tholus, olympus mons, , pavonis mons. these volcanoes have been extinct many millions of years, european mars express spacecraft has found evidence volcanic activity may have occurred on mars in recent past well.

jupiter s moon io volcanically active object in solar system because of tidal interaction jupiter. covered volcanoes erupt sulfur, sulfur dioxide , silicate rock, , result, io being resurfaced. lavas hottest known anywhere in solar system, temperatures exceeding 1,800 k (1,500 °c). in february 2001, largest recorded volcanic eruptions in solar system occurred on io. europa, smallest of jupiter s galilean moons, appears have active volcanic system, except volcanic activity entirely in form of water, freezes ice on frigid surface. process known cryovolcanism, , apparently common on moons of outer planets of solar system.

in 1989 voyager 2 spacecraft observed cryovolcanoes (ice volcanoes) on triton, moon of neptune, , in 2005 cassini–huygens probe photographed fountains of frozen particles erupting enceladus, moon of saturn. ejecta may composed of water, liquid nitrogen, ammonia, dust, or methane compounds. cassini–huygens found evidence of methane-spewing cryovolcano on saturnian moon titan, believed significant source of methane found in atmosphere. theorized cryovolcanism may present on kuiper belt object quaoar.

a 2010 study of exoplanet corot-7b, detected transit in 2009, suggested tidal heating host star close planet , neighboring planets generate intense volcanic activity similar found on io.