If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
The sun is 330,330 times larger than the earth!
190
Astronauts get taller when they are in space.
224
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
A 100-pound person on Earth would weigh 38 pounds on Mars.
102