Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Summer on Uranus lasts for 21 years.
358
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
More than 20 million meteoroids enter Earth's atmosphere every day.
139