Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

Could a passing star be on a collision course with our solar system and, eventually, Earth? It’s difficult to know if such an outcome is likely. Recently, researchers have found the Milky Way likely ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course ...

Of the solar system’s planets, Saturn piques the human imagination with its signature rings and impressive moon count of 274. But compelling new research reignites theories of an ancient collision ...

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its gaseous neighbors, possibly after much of the ...