Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The earth travels through space at 660,000 miles per hour.
189
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The heart of an astronaut actually gets smaller when in outer space.
216
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15