Astronomers have spotted only three objects known to have come from outside our solar system. The newest, called 3I/ATLAS, is ...

Avi Loeb, the Harvard theoretical physicist who has drawn attention for suggesting comet 3I/ATLAS may be alien-made, is sharing a new thought: The interstellar object could be nuclear-powered, based ...

He said images from the Hubble Space Telescope show a glow in front of the object, but no tail behind it. Usually, comets ...

Avi Loeb said bases this hypothesis on a July 21 image captured by the Hubble Space Telescope and shared by NASA.

A mystery object tearing towards Earth at break-neck speed has raised fears that aliens are on their way here.

John Hook previews this week's Newsmaker, and FOX 10 Anchor Brian Webb and Executive Producer Trenton Hooker discuss new ...

A Harvard scientist has suggested a 'hostile' object coming at us on Earth is an advanced 'mothership' after a warning was ...