Your body is creating and killing about 2.4 million red blood cells per second.
17
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Only about 2% of the world population has green eyes.
36
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140