250+ active volcanoes. No known planet or moon has more.

A star, eight planets, hundreds of moons, millions of asteroids and comets and much, much more. Note: Worlds shown are not to scale.

King of the planets. Only the Sun has more influence on our solar system.

This tiny, icy moon harbors a hidden ocean that spews ice into a ring around Saturn.

Super hot surface. Crushing atmosphere. Our solar system's planetary hot spot.