41% of the moon is not visible from earth at any time.
103
The population of the Earth has more than doubled since 1950.
151
A comet's tail always points away from the sun.
2
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Summer on Uranus lasts for 21 years.
358
There are two golf balls sitting on the moon.
721
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9