As scientists discover the most promising evidence of life on a distant planet, experts reveal what that alien life might ...

Scientists using the James Webb Telescope have detected a gas on K2-18b that, on Earth, is only produced by living ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" indicating extraterrestrial life.