A 100-pound person on Earth would weigh 38 pounds on Mars.
102
It takes eight and a half minutes for light to get from the sun to earth.
159
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
The earth rotates more slowly on its axis in March than in September.
145
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Today's top fuel dragsters take off with more force than the space shuttle.
120
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Sound doesn't travel in space.
255