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
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
If two pieces of metal touch in space, they become permanently stuck together.
808
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Pluto is smaller than Russia.
9
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The light hitting the earth right now is 30 thousand years old.
163
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82