Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The heart of an astronaut actually gets smaller when in outer space.
216
Summer on Uranus lasts for 21 years.
358
Today's top fuel dragsters take off with more force than the space shuttle.
120
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
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Buzz Aldrin’s mother’s maiden name was Moon.
9