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
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
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Earth is the only planet in our solar system that's not named after a god or goddess.
17
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236