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 earth rotates more slowly on its axis in March than in September.
145
Sound doesn't travel in space.
255
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Venus is the only planet that rotates clockwise.
310
The population of the Earth has more than doubled since 1950.
151