Astronomers have detected what may be the strongest evidence yet of #extraterrestrial life on K2-18b, a massive exoplanet orbiting a star 120 light-years from Earth. Using the #JamesWebb #Space Telescope, researchers found significant concentrations of dimethyl sulfide and dimethyl disulfide in K2-18b's atmosphere. On #Earth these sulfur compounds are exclusively produced by living organisms, particularly marine algae. https://www.npr.org/2025/04/16/nx-s1-5364805/signs-life-alien-planet-biosignatures-exoplanet