Jupiter's moon Ganymede, is larger than the planet Mercury!
149
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
The sun is 330,330 times larger than the earth!
190
The heart of an astronaut actually gets smaller when in outer space.
216
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 typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124