A comet's tail always points away from the sun.
2
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
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
The light hitting the earth right now is 30 thousand years old.
163
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
Jupiter is bigger than all the other planets combined.
254
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82