The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
The light hitting the earth right now is 30 thousand years old.
163
Venus is the only planet that rotates clockwise.
310
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Sound doesn't travel in space.
255
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
Today's top fuel dragsters take off with more force than the space shuttle.
120
If two pieces of metal touch in space, they become permanently stuck together.
808