An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
More than 20 million meteoroids enter Earth's atmosphere every day.
139