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

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

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 ...

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

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...

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

A rare visitor from another star system has undergone one of the most extensive technosignature searches ever conducted on an ...

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

A new line of research proposes that the first clear signs of extraterrestrial intelligence may not come from distant stars, ...

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