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

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

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

Scientists failed to find radio signals emanating from interstellar comet 3I/ATLAS, further bolstering its status as a ...

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

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 ...

The SETI Institute has given the all‑clear: new radio scans show the latest interstellar comet is natural, with no signs of ...

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 ...

A mysterious radio signal has been traced to a galaxy far, far away. And, it's causing a stir among astronomers -- although nobody is sure what it is. Research published this week in the journal ...

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 ...