It's incredible: a scientist has discovered the first signs of life on the exoplanet K2-18b using the James Webb Space Telescope! The fascinating details of this study reveal for the first time what the living conditions on this distant world are really like. Large quantities of water and gases, which clearly originate from life forms on Earth, paint a crazy and fascinating picture of a distant world. Thanks to the precise analyses of the James Webb Telescope, it is as if we were studying an extraterrestrial biosystem up close for the first time. What did we really discover there and what details shocked the scientists?