It 'snows' metal on Venus.
13
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The population of the Earth has more than doubled since 1950.
151
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
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Summer on Uranus lasts for 21 years.
358