The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The light hitting the earth right now is 30 thousand years old.
163
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Some asteroids have other asteroids orbiting them.
131
Sound doesn't travel in space.
255
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Astronauts get taller when they are in space.
224
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178