It takes eight and a half minutes for light to get from the sun to earth.
159
The heart of an astronaut actually gets smaller when in outer space.
216
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Sound doesn't travel in space.
255
The earth is .02 degrees hotter during a full moon.
157
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219