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

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 ...

Suppose a spacecraft already in Jupiter orbit could be reused to pursue an interstellar visitor? That is the question behind a daring plan to send NASA’s Juno spacecraft on a course for 3I/ATLAS, the ...

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