"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.

I/ATLAS Interstellar Comet or Alien Spacecraft? The interstellar object 3I/ATLAS was recently discovered traveling through the solar system. While most scientists classify it as a comet, Harvard astrophysicist Avi Loeb has proposed a theory that it could be alien technology.