Today's top fuel dragsters take off with more force than the space shuttle.
120
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
More than 20 million meteoroids enter Earth's atmosphere every day.
139
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Some asteroids have other asteroids orbiting them.
131
The light hitting the earth right now is 30 thousand years old.
163