New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth could thus be overlooking prime evidence of alien intelligence.

The odds of there being another intelligent life form in the Milky Way are pretty good given the billions of stars. But we ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Researchers from the search for extraterrestrial intelligence (SETI) may have figured out why we have not detected any alien ...

K2-18b is one of the most promising worlds for the search for extraterrestrial life, so astronomers conducted an unusually ...

Could the interstellar object 3I/ATLAS exhibit technosignatures, or signals of alien technology? This is what a recent study published in The Astronomical Journal hopes to address as a team of ...

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

Using emerging radio techniques refined during and after the Second World War, the astronomers detected a powerful radio ...

Get the latest federal technology news delivered to your inbox. You might think this column is about UFOs and the Pentagon's ...

No alien signals have been detected from an interstellar, cigar-shaped space rock discovered travelling through our Solar System in October, researchers listening for evidence of extraterrestrial ...

The Fermi paradox asks why we haven’t found aliens yet. Scientists say the answer may lie in timing, technology, and the vast ...