Water is not only a key ingredient in supporting life, it’s also a major clue as to how planets form, and NASA has found a lot of the stuff in the atmosphere of a giant exoplanet called Wasp-39b. The planet is as massive as Saturn but has three times as much water as the famous ringed planet. Although this “hot Saturn” is far from habitable, it does provide insights into the wide variety of planets in the universe.
.. Continue Reading Giant, waterlogged “hot Saturn” hints at breadth of exoplanet diversity
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