41% of the moon is not visible from earth at any time.
103
Summer on Uranus lasts for 21 years.
358
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The population of the Earth has more than doubled since 1950.
151
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127