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ARTICLE AD BOX
For countless ages, a small chunk of ice and dust traveled alone through interstellar space, like a sealed bottle drifting across a vast cosmic sea.
This summer, that traveler entered our solar system and received the name 3I/ATLAS, becoming only the third confirmed interstellar comet ever observed. When researchers at Auburn University aimed NASA's Neil Gehrels Swift Observatory at the object, they uncovered something extraordinary: the first detection of hyd...
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