An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Today's top fuel dragsters take off with more force than the space shuttle.
120
41% of the moon is not visible from earth at any time.
103
Summer on Uranus lasts for 21 years.
358
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
It 'snows' metal on Venus.
13