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‘Difficult to explain’ comet 3I/ATLAS erupts in X-rays after 400,000-km halo appears
Interstellar comet 3I/ATLAS has turned into one of the strangest visitors in the recent history of the solar system, ...
When interstellar visitor 3I/ATLAS exhibited some peculiar movements, speculation arose regarding potential alien origins.
Add Yahoo as a preferred source to see more of our stories on Google. Earlier this month astronomers were thrilled to discover only the third known interstellar object ever seen in our solar system.
The mysterious Manhattan-sized interstellar object 3I/ATLAS appears to have no cometary tail in new images, which would eliminate the conventional explanation for the surprising “non-gravitational ...
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'Difficult to explain'—3I/ATLAS emits X-rays for first time in history after 400,000-km halo appears
Japan’s XRISM mission reported a faint X-ray halo around interstellar comet 3I/ATLAS in November 2025, highlighting ...
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