Long-term liquid water also on non-terrestrial planets?
Low-mass planets with a primordial atmosphere of hydrogen and helium can have the temperatures and pressures that allow water into the liquid phase. The presence of liquid water is beneficial to life, so these planets may host exotic habitats for billions of years. Credit: © (CC BY-NC-SA 4.0) – Thibaut Roger – Universität Bern – …
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