All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Earth is the only planet in our solar system that's not named after a god or goddess.
17
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147