41% of the moon is not visible from earth at any time.
103
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Lightning strikes about 6,000 times per minute on this planet!
158
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
More than 20 million meteoroids enter Earth's atmosphere every day.
139
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
If two pieces of metal touch in space, they become permanently stuck together.
808