In 1977, a US-backed search for alien signals detected a 72-second radio burst from deep space that was about 30 times ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it ...

If 3I/ATLAS isn’t an alien probe, its discovery may be even more important. Scientists detected no radio signals from the ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Scientists have searched the skies for alien radio signals for more than 60 years, but all ...

Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the source of potential signals than previously thought. Conditions around ...

Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to ...

Scientists hunting for radio signals from any form of advanced extraterrestrial life that might be out there trying to contact us are now starting to wonder if something has been messing with their ...

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist ...

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...