Tuesday, February 10, 2026

NASA's SPHEREx Mission Spots 3I/ATLAS's Bright Envelope

Images of 3I/ATLAS acquired by the SPHEREx mission in December 2025. Credits: NASA/JPL-Caltech

Observations by NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) show the infrared light emitted by the dust, water, organic molecules, and carbon dioxide contained within comet 3I/ATLAS’s coma.



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