Coolest Rocky Exoplanet Ever: James Webb Reveals Surprising At | Astronomy Knowledge

Coolest Rocky Exoplanet Ever: James Webb Reveals Surprising Atmosphere of TRAPPIST-1 C

NASA’s James Webb Space Telescope has discovered that exoplanet TRAPPIST-1 c, despite being the same size as Venus and receiving similar radiation, does not have a thick carbon dioxide atmosphere, making it unlikely to be a Venus analog. The planet, which has the coolest measured temperature for a rocky exoplanet, might have formed with minimal water content. It either lacks an atmosphere or possesses a very thin one, and further research will investigate temperature variations on the planet and continue studying potential atmospheric conditions.