Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert ...

For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical ...

In a groundbreaking study,Harvard physicist Dr. Avi Loeb has brought new attention to an unusual interstellar object, ...

The theoretical physicist at Harvard University, Avi Loeb, believes it might be a ' potentially hostile ' alien craft ...

A Harvard University astrophysicist has suggested the incoming interstellar object 3I/ATLAS could be an alien probe. But NASA and most astronomers say it’s almost certainly a comet.3I/ATLAS, also ...

Massive interstellar object 3I/ATLAS, larger than Manhattan, shows unusual glow pattern and planetary alignment that Harvard ...

A Harvard physicist has asserted that new images of the Manhattan-sized interstellar object rocketing through our inner solar ...

"The consequences, should the hypothesis turn out to be correct, could potentially be dire for humanity," said Avi Loeb.

A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar ...

The first probe sent to us by an alien civilization may not actually be the first to have been sent, which could make first contact super confusing.

Forget alien Voyagers — our first encounter with alien probes could be sleek newer models Back-of-the-envelope map suggests interstellar probes get faster every year.

The space rock 3I/ATLAS is only the third confirmed interstellar object discovered by astronomers, following 'Oumuamua and the comet Borisov. While astronomers are still busily collecting data on the ...