Astronomers detect water vapor in the atmosphere

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Astronomers detect water vapor in the atmosphere of an exoplanet 120 light-years away, with temperatures exceeding 900 K, a 2026 study finds, providing new insights into atmospheric chemistry and planetary formation, though conditions remain too extreme to support known forms of life
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Volatile-rich evolution of molten super-Earth L 98-59 d - Nature Astronomy

Planet-evolution models explain JWST data for L 98-59 d through a new scenario: while cooling and escape shrank this planet, a permanent magma ocean supplies sulfur to its atmosphere, in which SO2 is produced by photochemistry.

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Astronomers detect water vapor in the atmosphere of an…

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