There are two golf balls sitting on the moon.
721
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
Jupiter is bigger than all the other planets combined.
254
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Astronauts get taller when they are in space.
224
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
