It 'snows' metal on Venus.
13
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
Pluto is smaller than Russia.
9
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82