July 28, 2026
Escaping helium confirms the planet is wrapped in gas, opening a new path to studying distant worlds
Hydrogen sulphide-rich atmosphere traps star’s heat, leaving planet’s surface molten
About 5,800 planets beyond our solar system, called exoplanets, have been discovered since the 1990s
Two gases detected in the James Webb Space Telescope’s observations of planet K2-18 b are generated on Earth by living organisms
