The population of the Earth has more than doubled since 1950.
151
The earth travels through space at 660,000 miles per hour.
189
A comet's tail always points away from the sun.
2
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
There are two golf balls sitting on the moon.
721
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127