The population of the Earth has more than doubled since 1950.
151
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
It takes eight and a half minutes for light to get from the sun to earth.
159
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178