A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Scientists suggest Titan formed from a giant moon collision that also may explain Saturn’s rings and strange moon orbits.

Astronomers have discovered a surprising planetary system that does not follow the usual rules of how planets form. The ...

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 ...