Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
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 volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219