A comet's tail always points away from the sun.
2
Some asteroids have other asteroids orbiting them.
131
The earth rotates more slowly on its axis in March than in September.
145
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The light hitting the earth right now is 30 thousand years old.
163
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The population of the Earth has more than doubled since 1950.
151
Today's top fuel dragsters take off with more force than the space shuttle.
120