An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
It would take more than 150 years to drive a car to the sun.
569
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Today's top fuel dragsters take off with more force than the space shuttle.
120
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Summer on Uranus lasts for 21 years.
358