The light hitting the earth right now is 30 thousand years old.
163
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 density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Some asteroids have other asteroids orbiting them.
131
