Today's top fuel dragsters take off with more force than the space shuttle.
120
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
Summer on Uranus lasts for 21 years.
358
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
A comet's tail always points away from the sun.
2
Sound doesn't travel in space.
255