Some asteroids have other asteroids orbiting them.
131
Only 55% of Americans know that the sun is a star.
986
Jupiter is bigger than all the other planets combined.
254
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Today's top fuel dragsters take off with more force than the space shuttle.
120
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46