Interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday. New X-ray images could shed light on its composition.
An interstellar comet first spotted passing through our solar system in July is beginning its departure from our corner of the universe — but first it will fly by Earth, and scientists are capturing ...
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Saying goodbye to comet 3I/ATLAS, the interstellar visitor that briefly called our solar system home
Learn how you can say farewell to comet 3I/ATLAS as it passes by Earth on Dec. 19, 2025, and what we have learned during its ...
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