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

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 ...

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

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

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

People in Japan witnessed a rare sight on Tuesday night as the sky got lit up by a fireball.The astonishing sight was captured by live cameras installed at locations across parts of Kyushu ...

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

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble ...

Interstellar object 3I/ATLAS — which is zooming through our inner solar system — appears to be emitting its own light, ...

A Harvard scientist who claims that an object hurtling through space may not be a comet but in fact an alien probe has said ...

In the past decade, astronomers have witnessed three interstellar objects (ISOs) passing through the solar system. These ...