NASA’s James Webb Space Telescope detects methane hidden deep inside interstellar comet 3I/ATLAS with unusual carbon dioxide abundance |

[ad_1] The view coming back from NASA’s James Webb Space Telescope has a way of turning familiar categories of comet science slightly awkward. 3I/ATLAS, an interstellar object only briefly passing through the solar system, has been watched before, but this time the reading feels less like a routine update and more like a chemical surprise […]

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NASA’s SPHEREx mission observes interstellar comet 3I/ATLAS brightening in a surprising solar outburst |

[ad_1] Comets usually fade quietly once they swing past the Sun. Interstellar comet 3I/ATLAS did not follow the same path. Instead, as it began to exit the solar system, it flared up dramatically. NASA’s SPHEREx space telescope caught the outburst in December 2025, spotting water vapour, carbon dioxide, and complex organic compounds streaming into space. […]

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