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rssMB to Phys.orgEnglish · 2 days ago

Physicists detect water's ultraviolet fingerprint in interstellar comet 3I/ATLAS

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Physicists detect water's ultraviolet fingerprint in interstellar comet 3I/ATLAS

phys.org

rssMB to Phys.orgEnglish · 2 days ago
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For millions of years, a fragment of ice and dust drifted between the stars—like a sealed bottle cast into the cosmic ocean. This summer, that bottle finally washed ashore in our solar system and was designated 3I/ATLAS, only the third known interstellar comet. When Auburn University scientists pointed NASA's Neil Gehrels Swift Observatory toward it, they made a remarkable find: the first detection of hydroxyl (OH) gas from this object, a chemical fingerprint of water.

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