An unusual visitor has entered our cosmic neighborhood. Scientists call these objects interstellar objects, or ISOs. Unlike ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

Avi Loeb has revived debate around 3I/ATLAS, the interstellar object that passed through the solar system last year, by suggesting it may have scattered life-building material as it travelled. The ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

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On October 29, Comet 3I/ATLAS reached its closest point to the sun. This isn't the first time the alien question has come up in the context of a new astronomical discovery. But although it might be ...

Scientists in California have completed one of the first dedicated searches for signs of alien technology on 3I/ATLAS, the ...