Could alien signals have already reached Earth undetected? - If advanced alien civilisations exist and have contacted Earth, ...

Astronomers have detected the first-ever "radio signal" coming from the interstellar comet 3I/ATLAS, right as it passed the halfway mark on its oneway trip through the solar system. And while this may ...

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

At the center of the Milky Way, close to the pull of a supermassive black hole, astronomers have found a strange new radio signal that behaves like a slow, steady clock. This object is more than an ...

Decoding the First Signal from 3I/ATLAS: Natural Origins Confirmed The focus on interstellar objects intensified when astronomers, using South Africa's powerful MeerKAT radio telescope, detected radio ...

Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...