Confirmed as an alien comet, new observations have given us a much better idea of how large this interstellar object actually ...

Scientists propose that NASA's Juno probe could intercept the recently discovered interstellar comet, 3I/ATLAS, providing a close examination of this enigmatic celestial object.

The most striking science photos of the week: including the Perseid meteor shower and glowing underwater wonders.

James Webb Space Telescope discovers 300 mysteriously luminous objects, sparking debate on whether they are galaxies or something else ...

Chadderton-born Professor Brian Cox has spoken out about claims that an interstellar object could be an alien spacecraft ...

STARRS Observatory in Hawaii made history in 2017 when they detected 'Oumuamua, the first interstellar object (ISO) ever ...

Orbital transfer vehicles launch atop rockets, carrying other spacecraft that they deliver to specific, often hard-to-reach, ...

With its rust-colored surface, Mars has more than earned its nickname, the Red Planet. But Perseverance has offered a new glimpse.

Theoretical physicist Avi Loeb warns 3I/ATLAS – a mystery 12-mile wide object hurtling through space at 130,000mph – may be ...

A miles-wide entity hurtling through space at 37 miles per second could be an alien spaceship, scientists have warned. It was ...