JWST Detects Water Vapor on the Smallest Exoplanet Yet
GJ 9827 d: The Smallest Exoplanet Discovered with Water Vapor GJ 9827 d, an exoplanet situated approximately 98 light-years away, has captured the attention of astronomers as the smallest exoplanet identified to date that possesses water vapor in its atmosphere. With a diameter nearly twice that of Earth, questions arise regarding its composition—could it closely … Read more