The light hitting the earth right now is 30 thousand years old.
163
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
NASA invented baby food as we know it today.
7
Sound doesn't travel in space.
255
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Pluto is smaller than Russia.
9
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22