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list of extrasolar candidates for liquid water
Extraterrestrial liquid water is likely rare, but has been observed at Enceladus. Extrasolar liquid water has not yet been found to exist. The following list contains candidates from the list of confirmed exoplanets.
Most known extrasolar planetary systems appear to have very different compositions from the Solar System, though there is probably sample bias arising from the detection methods.
The goal of current searches is to find Earth-sized planets in the habitable zone of their planetary systems (also sometimes called the ''Goldilocks zone''). Planets with oceans could include Earth-sized moons of giant planets, though it remains speculative whether such 'moons' really exist. The Kepler telescope might be sensitive enough to detect them. But there is evidence that rocky planets hosting water may be commonplace throughout the Milky Way.
== 55 Cancri e ==
55 Cancri e orbits very close to 55 Cancri, but observations suggest that it is 30% supercritical water, a global ocean. Follow-up analysis of its transit failed to detect traces of either water or hydrogen making it highly unlikely that liquid water is present at the surface.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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