"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Moon dust may be hiding signs of pulverised alien technology, scientist says - Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

A polarizing Harvard University astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an alien spaceship.

A new SETI study suggests we may be overlooking alien signals not because they aren't there, but because their own stars are scrambling them before they escape into space. Turbulent plasma and ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...