If NASA sent birds into space they would soon die; they need gravity to swallow.
146
If two pieces of metal touch in space, they become permanently stuck together.
808
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
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17