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 two pieces of metal touch in space, they become permanently stuck together.
808
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
Pluto is smaller than Russia.
9