The K2-18b star system consists of a rather small star and two exoplanets: James Webb telescope now discovered signs of life on the exoplanet K2-18b there. Since then, the world of science has been looking spellbound at this system 120 light years away: what do the detected traces of water, methane, carbon dioxide and a gas called DMS really reveal? What forms of life could exist in this rich water world and is this the beginning of a series of discoveries that are very similar? James Webb finally provides the answers we've been waiting for.