41% of the moon is not visible from earth at any time.
103
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
Today's top fuel dragsters take off with more force than the space shuttle.
120
The light hitting the earth right now is 30 thousand years old.
163
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The earth rotates more slowly on its axis in March than in September.
145
A 100-pound person on Earth would weigh 38 pounds on Mars.
102