Evidence from K2-18b marks significant milestone in search for extraterrestrial life The hunt for life beyond Earth has taken a major step forward. Scientists using the James Webb Space Telescope (JWST) have detected what they call the “strongest evidence yet” of potential biosignatures—signs of biological activity—on an exoplanet called K2-18b, located 124 light-years away in the constellation Leo. Key Discovery: Molecules Associated With Life Researchers detected dimethyl sulfide (DMS) and potentially dimethyl disulfide (DMDS) in the planet’s atmosphere. On Earth, these sulfur-containing molecules are primarily produced by living organisms, especially marine phytoplankton in our oceans. “Frankly, I think this is … Continue reading James Webb Identifies Unusual DMS Concentrations on K2-18b, Raising Life Possibility