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    Webb spots first hints of atmosphere on a potentially habitable world

    October 4, 2025, Categories  Astronomy/Space

    The Earth-size exoplanet TRAPPIST-1 e, depicted at the lower right, is silhouetted as it passes in front of its flaring host star in this artist’s concept of the TRAPPIST-1 system.
    Image credit: NASA, ESA, CSA, J. Olmsted (STScI)

    Hints of an atmosphere on TRAPPIST-1e raise hopes it could be a watery, potentially habitable world. Astronomers using the James Webb Space Telescope are unraveling the mysteries of TRAPPIST-1e, an Earth-sized exoplanet 40 light years away that could harbor liquid water. Early data suggests hints of an atmosphere, but much remains uncertain. Researchers have already ruled out a hydrogen-rich primordial atmosphere, pointing instead to the possibility of a secondary atmosphere that could sustain oceans or ice.

    University of Bristol astrophysicists are helpin...

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