Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Sound doesn't travel in space.
255
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
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
The Earth gets 100 tons heavier every day due to falling space dust.
673
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194