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
The heart of an astronaut actually gets smaller when in outer space.
216
Venus is the only planet that rotates clockwise.
310
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Earth is the only planet in our solar system that's not named after a god or goddess.
17
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11