A comet's tail always points away from the sun.
2
Earth is the only planet in our solar system that's not named after a god or goddess.
17
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
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
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Some asteroids have other asteroids orbiting them.
131