Summer on Uranus lasts for 21 years.
358
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Earth is the only planet in our solar system that's not named after a god or goddess.
17
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82