The population of the Earth has more than doubled since 1950.
151
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
Today's top fuel dragsters take off with more force than the space shuttle.
120
A comet's tail always points away from the sun.
2
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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Astronauts get taller when they are in space.
224