A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Today's top fuel dragsters take off with more force than the space shuttle.
120
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Sound doesn't travel in space.
255
The earth is .02 degrees hotter during a full moon.
157
The heart of an astronaut actually gets smaller when in outer space.
216
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88