A cigar-shaped rock zooming through our Solar System — the first object from a foreign star system ever spotted in our midst — is cloaked in a coat of organic material, astronomers said Monday. Dubbed ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of an exoplanet in an alien star system. New research suggests that radio emissions from intelligent aliens may be ...

An extraordinary visitor from beyond our solar system, the interstellar comet 3I/ATLAS, is baffling scientists as it streams out carbon-rich chemical compounds at a rate rarely seen in our own cosmic ...

What happens if alien contact stops being science fiction and becomes real? From mysterious interstellar objects to the possibility of signals, peaceful arrival, or outright attack, the deeper ...