Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

In a move that has electrified the scientific community, NASA will host a live event at 3 p.m. EST, Wednesday, Nov. 19, to ...

New research shows that Theia, the planet that collided with Earth and formed the Moon, was a rocky world born closer to the ...

How fast and in which direction is our solar system moving through the universe? This seemingly simple question is one of the ...

NASA has unveiled the close-up pictures of an interstellar comet that is the third confirmed object to enter our solar system ...

Simulations reveal that Jupiter’s rapid growth disrupted the early solar system, creating rings where new planetesimals ...

“Our analysis shows that the solar system is moving more than three times faster than current models predict,” Böhme ...

The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun ...

Astronomers might have found evidence of a structure located farbeyond Neptune, potentially giving us clues about the solar ...