A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Earth is the only planet in our solar system that's not named after a god or goddess.
17
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Today's top fuel dragsters take off with more force than the space shuttle.
120
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147