The population of the Earth has more than doubled since 1950.
151
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
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Today's top fuel dragsters take off with more force than the space shuttle.
120
The sun is 330,330 times larger than the earth!
190