A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

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

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

Avi Loeb, a distinguished cosmologist who previously led Harvard’s astronomy department until 2020 and conducted extensive ...

This is the story of a mysterious finding in New Hampshire, pieced together from the incident summary sheet and official ...

A newly spotted interstellar visitor just got an unusually close listen from California scientists — in a search for signs of ...

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

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

Scientists now believe alien signals may have already reached Earth, and the reason we keep missing them has nothing to do ...

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...