Extraterrestrial liquid water is water in its liquid state that naturally occurs outside Earth. It is a subject of wide interest because it is recognized as one of the key prerequisites for life as we
A cross-section of Mars underground ice is exposed at the steep slope that appears bright blue in this enhanced-color view from the MRO. The scene is about 500 meters wide. The scarp drops about 128 meters from the level ground in the upper third of the image.
Liquid water has not been detected in spectroscopic analysis of suspected seasonal Martian flows.
Saturn's tiny moon Mimas, the Solar System's smallest round body, may be a new class of "stealth ocean world".
Site of south polar Martian subglacial water body (reported July 2018)
Europa (moon)
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Europa is the smallest and least massive of Jupiter's four Galilean moons. It is observable from Earth with common binoculars and is a planetary-mass moon, slightly smaller and less massive than Earth
Extraterrestrial liquid water
…seasonally covered by a 1-metre (3 ft 3 in)-thick layer of CO2 ice. Scientists' consensus is that a layer of liquid water exists beneath the surface of Europa, a moon of Jupiter and that heat from tidal flexing allows the subsurface ocean to remain liquid. It is estimated that the outer crust of solid ice is…
Size comparison of Europa (lower left) with the Moon (top left) and Earth (right)
Closeup views of Europa obtained on 26 September 1998; images clockwise from upper left show locations from north to south as indicated at lower left.
Photo composite of suspected water plumes on Europa
Hypothetical subduction-like activity which may be occurring on Europa