Mysterious atmosphere of 'Rosetta Stone' exoplanet
SMRTR summary
A new study suggests TOI-270 d, a sub-Neptune exoplanet 73 light years away, could be a giant rocky planet with a thick, hot atmosphere. Recent data from the James Webb Space Telescope revealed temperatures over 1,000 degrees Fahrenheit and detected gases like carbon dioxide, methane, and water. While not habitable, TOI-270 d offers insights into planet formation and evolution. The research also explains the lack of ammonia in temperate sub-Neptune atmospheres, advancing our understanding of exoplanetary geochemistry.
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