It 'snows' metal on Venus.
13
The heart of an astronaut actually gets smaller when in outer space.
216
The population of the Earth has more than doubled since 1950.
151
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Some asteroids have other asteroids orbiting them.
131
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The earth rotates more slowly on its axis in March than in September.
145