Dimethyl Sulfide on K2-18 b: A Potential Biosignature Hinged on Context and Further Data
To the point
JWST detects dimethyl sulfide or related sulfur compounds in K2-18 b's atmosphere, a finding Nikku Madhusudhan says could point to a warm ocean and life, but Eleanor Browne, Nora Hänni, and Chris Lintott caution that abiotic processes and the need for broader chemical context mean we cannot conclude life without more data.
