The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The population of the Earth has more than doubled since 1950.
151
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
