K2 18b Has a Damp Atmosphere

In 2015 Kepler found this planet orbiting a red dwarf star some 110 light years from Earth, twice as wide as Earth, and has eight times Earth’s mass. It’s not exactly Earth-like, but it does orbit within the habitable zone of that star.

In 2016 and 2017 using the Hubble, a team discovered that the wavelengths of light it absorbed were consistent with planets that had a watery atmosphere. When they used the Spitzer telescope, they found clouds and simulated it’s climate. It could have rain from those clouds, but as to how far the rain would get before it evaporated is unknown.

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wall of rain – Gold Coast, Australia

The rain is simulated and not proof exists. They are waiting for a turn at the James Webb Space Telescope for more information.

Source: https://www.sciencenewsforstudents.org/article/spotted-exoplanet-where-it-might-rain

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