Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Summer on Uranus lasts for 21 years.
358
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The earth rotates more slowly on its axis in March than in September.
145