The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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
Buzz Aldrin’s mother’s maiden name was Moon.
9
A comet's tail always points away from the sun.
2
The light hitting the earth right now is 30 thousand years old.
163
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The earth rotates more slowly on its axis in March than in September.
145
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15