
Scientists have found further evidence of possible biosignature gases on the nearby exoplanet K2-18b, strengthening the case that it could support alien life.
In 2023, researchers using NASA's James Webb Space Telescope (JWST) reported the potential presence of dimethyl sulfide (DMS) on K2-18b, which is nearly nine times more massive than Earth and circles in the "habitable zone" of a star about 120 light-years away from us.