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New evidence suggests that the famous interstellar traveler may be so old that its home system no longer exists.

Comet 3I/Atlas is now heading out of the solar system and into interstellar space, but scientists are still analyzing the data it left behind as it passed through our cosmic neighborhood. A new study, ...

Add Yahoo as a preferred source to see more of our stories on Google. Pictures of 3I/ATLAS will soon be all we have to remind us of the strange interstellar comet and its brief visit to our cosmic ...

Comet 3I/ATLAS continues to make astonishing headlines, thanks to new findings from astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA). This new research reveals that 3I/ATLAS ...

Interstellar comet 3I/ATLAS stole our hearts in 2025. Discovered on July 1, and only the third known interstellar visitor, it ...

The interstellar comet 3I/ATLAS contains water and carbon molecules at levels never before seen in our solar system. This suggests that it formed around an alien star radically different from and much ...

Interstellar Comet 3I/ATLAS is the gift that keeps on giving. A snapshot of space that lies beyond the solar system, it brings clues to our understanding of other stars, other worlds and the galaxy we ...

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected unusually large amounts of methanol, a simple alcohol, in interstellar comet 3I/ATLAS—levels that exceed those ...

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NASA’s PUNCH was tracking comet SWAN when 3I/ATLAS whizzed past. Credit: NASA/Southwest Research Institute ...

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