Dr. Nikku Madhusudhan’s team has detected dimethyl sulfide (DMS) on exoplanet K2-18b, a potential biosignature produced by living organisms like marine algae on Earth. This discovery, made using the James Webb Space Telescope, marks a significant step in the search for extraterrestrial life. The findings suggest K2-18b could be a Hycean planet with a warm, life-supporting ocean.