"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.

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

Most astrophysicists widely agree 3I/ATLAS displays all the telltale signs of an icy comet. Now, a trio of researchers led by Avi Loeb, a controversial astrophysicist from Harvard University,