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

Abraham Loeb has theorized that the recently discovered interstellar object 3I/ATLAS could be alien technology, but ASU's Planetarium Director Kenneth Carrell believes it is more likely to be a small rocky object that was flung out of another star system.

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the data that will tell us what it is," Loeb said in an interview with WBZ-TV.