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
Today's top fuel dragsters take off with more force than the space shuttle.
120
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
41% of the moon is not visible from earth at any time.
103
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175