NASA's James Webb Space Telescope detected carbon dioxide in the atmosphere of WASP-39b, a hot gas giant exoplanet, by analyzing starlight that passed through its atmosphere; this transmission spectroscopy technique reveals atmospheric composition through chemical fingerprints in the light spectrum, demonstrating the telescope's capability to read alien atmospheres with precision.
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NASA Webb detected CO₂ on an exoplanet atmosphere | WASP-39 bAdded:
Did you know we can sniff an exoplanet's [music] atmosphere from light-years away? NASA's James Webb Space Telescope watched starlight filter through the atmosphere of WASP-39b, a hot gas giant hugging [music] its star. In that rainbow of light, scientists found a clear fingerprint of carbon dioxide. That does not mean life, but it proves Webb can read alien air with precision. Follow [music] FactVerse for more space science in seconds.
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