Webb Telescope Limits Atmosphere Options for TRAPPIST-1 d

A study using NASA's James Webb Space Telescope found no detectable Earth-like atmosphere on the exoplanet TRAPPIST-1 d, which is similar in size to Earth and located in its star's habitable zone. The absence of atmospheric molecules like water, methane, or carbon dioxide suggests the planet may have a thin atmosphere, thick clouds, or none at all, highlighting the challenges of studying planets around volatile red dwarf stars. Ongoing observations of other TRAPPIST-1 planets may reveal more about their potential habitability.