In a mission that changed our understanding of gas giants, NASA’s Galileo spacecraft made history not just in orbit but also ...

It takes a supercomputer weeks to output the properties of one stellar binary. A new study shows AI can do it in a fraction ...

People who like to gawp at celestial events (as we all should) are in for a real treat at the moment. As well as the best ...

John Casani, who has died aged 92, was an American spaceflight engineer who led the teams that pioneered Nasa’s explorations ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.

Watch interstellar comet 3I/ATLAS live online tonight as it races toward the sun on a rare visit from beyond our solar system.

NASA scientists have confirmed that a mysterious object shooting toward us through the solar system is an "interstellar object" — only the third of its kind ever seen.

NASA has discovered 3I/ATLAS, only the third known interstellar object, now passing through our solar system from the direction of Sagittarius ...

CAPE CANAVERAL, Fla. (AP) — Astronomers are monitoring an object headed our way that may have wandered over from another star system.

This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course by a passing star. Such a world-shattering cataclysm is ...

There’s a giant ball of ice barreling through the solar system right now, and it’s bigger than any we’ve seen before. It poses no threat to Earth, but this comet, called C/2014 UN271 ...