Space fans hoping that the intruder from beyond the solar system known as Comet 3I/ATLAS is actually an alien spacecraft may be disappointed by new research that could close the book on this ...
The most consequential signal humanity ever detects from another civilization may not arrive as a calm introduction. It may ...
Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.