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

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 best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...

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

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this week, with astrophysicists in the UK and Australia stressing that while ...

SETI researchers found no alien signals on interstellar object 3I/ATLAS, but the study refines future searches and expands understanding of interstellar visitors.

The International Academy of Astronautics has updated its protocols for confirming and announcing the discovery of alien life. New guidelines address the modern challenges of social media, ...

The space between stars just got a little sweeter. Astronomers have detected a type of sugar in space that’s also found in ...