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 population of the Earth has more than doubled since 1950.
151
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
It 'snows' metal on Venus.
13
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 earth travels through space at 660,000 miles per hour.
189
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14