New study revisits signs of life on K2-18 b

Astronomers have long sought signs of life beyond Earth, with exoplanets like K2-18 b — a world about 124 light-years away — offering tantalizing possibilities. In 2023 and again in April 2025, a team using the James Webb Space Telescope (JWST) detected molecules in K2-18 b’s atmosphere they claimed could be a biosignature: dimethyl sulfideContinue reading “New study revisits signs of life on K2-18 b”
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