Pluto is smaller than Russia.
9
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
It would take more than 150 years to drive a car to the sun.
569
The population of the Earth has more than doubled since 1950.
151
It 'snows' metal on Venus.
13
The light hitting the earth right now is 30 thousand years old.
163