Astronomers Detect Water Activity in Interstellar Object 3I/ATLAS

Oct 7, 2025 - 18:15
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Astronomers Detect Water Activity in Interstellar Object 3I/ATLAS
Stacked images of the interstellar comet 3I/ATLAS acquired with the Ultraviolet/Optical Telescope aboard NASA’s Neil Gehrels Swift Observatory: the first were obtained on July 31 and August 1, 2025 (visit 1, top half of figure) and the second on August 19, 2025 (visit 2, bottom half of figure). Image credit: Xing et al., doi: 10.3847/2041-8213/ae08ab.

Using the Ultraviolet/Optical Telescope aboard NASA’s Neil Gehrels Swift Observatory, astronomers have detected hydroxyl (OH) gas -- a chemical fingerprint of water -- from the interstellar object 3I/ATLAS.

The post Astronomers Detect Water Activity in Interstellar Object 3I/ATLAS appeared first on Sci.News: Breaking Science News.

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