There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
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
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
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
A comet's tail always points away from the sun.
2