Conversation

Webb continues to find chemicals in the atmospheres of exoplanets, like carbon dioxide and water vapor. Astronomers report they've discovered methane in the atmosphere of WASP 80 b. Although life can produce methane, there are inorganic ways to generate it, too. Methane has been found in the atmospheres of all the giant planets in the Solar System. WASP 80 b is a "warm jupiter", warmer than our planets but nothing like the hottest planets found.

https://blogs.nasa.gov/webb/2023/11/22/nasas-webb-identifies-methane-in-an-exoplanets-atmosphere/