Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" alien technology.

However, we might also want to look for hints of alien origin. One very strong piece of evidence would be any kind of radio waves coming from the probe as a form of communication. This is assuming the probe was still in working order, and not completely defunct.

Stunning New Harvard Study Says Rare Interstellar Object Could Be An Alien Probe: 3I/ATLAS Explained ‘Many laughed. Few believed’: Congress attacks govt over ED raids on Anil Ambani; recalls Rahul’s old charge All of a sudden,