If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Summer on Uranus lasts for 21 years.
358
41% of the moon is not visible from earth at any time.
103
Astronauts cannot burp in space.
232
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15