An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Only 55% of Americans know that the sun is a star.
986
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
Astronauts get taller when they are in space.
224
The earth rotates more slowly on its axis in March than in September.
145
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
It 'snows' metal on Venus.
13