Harvard astrophysicist Avi Loeb co-authored a July research paper speculating about whether the comet 3I/ATLAS is in fact 'hostile' alien technology.

A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar to claims made about 'Oumuamua. But experts have called it "nonsense".

A newly discovered interstellar comet, 3I/ATLAS, has sparked debate in the scientific community after Harvard astrophysicist Avi Loeb and his team proposed a speculative idea-that it might be an alien spacecraft.