Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
It would take more than 150 years to drive a car to the sun.
569
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
The heart of an astronaut actually gets smaller when in outer space.
216
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13