Clouds of water droplets and even rain may exist in the soggy skies of a faraway exoplanet. A combination of observations with space telescopes and simulations suggests that planet K2 18b has water ...
An Oct. 11 Facebook post (direct link, archive link) shows an image of Earth and another, larger planet beside it. "This is K2-18b, a potentially habitable planet covered with oceans and about 2.6 ...
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