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

A cosmic visitor is stirring an earthly debate. A Harvard astrophysicist has suggested the incoming interstellar object ...

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

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

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

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

NASA's Hubble Space Telescope has captured an incredible image of an alien comet that's soaring through our galaxy from ...

The strange 3I/ATLAS comet that was recently discovered to be speeding through our solar system could actually be the work of ...

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

A giant “alien” comet had a recent near-miss with our solar system’s most notorious star: the sun. Experts believe the comet – known formally as 96P/Machholz 1 – came from somewhere else ...

Avi Loeb suggested that NASA may have rushed to conclusions by ruling out the possibility of an artificial aircraft.