Sound doesn't travel in space.
255
Lightning strikes about 6,000 times per minute on this planet!
158
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The heart of an astronaut actually gets smaller when in outer space.
216
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175