Water world? Methane, carbon dioxide in atmosphere of massive exoplanet
https://www.sciencedaily.com/releases/2023/09/230911141059.htm
Summary:
A new investigation with NASA's James Webb Space Telescope into K2-18 b,
an exoplanet 8.6 times as massive as Earth, has revealed the presence of
carbon-bearing molecules including methane and carbon dioxide.
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