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
It takes eight and a half minutes for light to get from the sun to earth.
159
Astronauts get taller when they are in space.
224
There are two golf balls sitting on the moon.
721
Venus is the only planet that rotates clockwise.
310
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
It would take more than 150 years to drive a car to the sun.
569
The earth rotates more slowly on its axis in March than in September.
145