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

SETI scanned 3I/Atlas for more than seven hours and detected no signs of extraterrestrial technology; The comet is only the ...

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

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

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 ...

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 ...

Astronomers who detect a credible signal from aliens after 2026 will be barred from announcing it publicly or sending any ...

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 ...

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