There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Jupiter is bigger than all the other planets combined.
254
Astronauts get taller when they are in space.
224
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The earth rotates more slowly on its axis in March than in September.
145
It 'snows' metal on Venus.
13
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