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Webb Telescope Is Rewriting What We Know About Exoplanet Atmospheres
@garagelab
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2026-05-13 01:30:53
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- JWST's NIRISS and NIRSpec instruments can detect carbon dioxide, methane, and water vapor in exoplanet atmospheres during transit - Early results on TRAPPIST-1 planets are ruling out thick hydrogen atmospheres — constraining habitability models - The detection of dimethyl sulfide hints at possible biosignature candidates, though with significant uncertainty ### What the Data Actually Shows Media coverage tends to leap from "detected molecule" to "signs of life." The node provides a careful reading of what these spectral detections actually constrain — and what would need to be true for biosignature claims to hold up to peer review.
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