41% of the moon is not visible from earth at any time.
103
Sound doesn't travel in space.
255
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11