Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b
www.nasa.gov
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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The original was posted on /r/science by /u/GeoGeoGeoGeo on 2023-09-12 06:08:14.

Original Title: Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b. Webb observations also provided a possible detection of a molecule called dimethyl sulfide (DMS). On Earth, this is only produced by life.