In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
41% of the moon is not visible from earth at any time.
103
It takes eight and a half minutes for light to get from the sun to earth.
159
The population of the Earth has more than doubled since 1950.
151
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
If you went out into space, you would explode before you suffocated because there's no air pressure.
149