First Atmosphere Found on Rocky Planet in Another Star's Habitable Zone

Astronomers have confirmed the first atmosphere around a rocky planet in a star's habitable zone — LHS 1140 b, located 48 light-years away. The atmosphere was detected through helium slowly leaking into space. Scientists believe the atmosphere may have survived for billions of years, making LHS 1140 b one of the most promising candidates in the search for potentially habitable worlds.

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