If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
It would take more than 150 years to drive a car to the sun.
569
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9