All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Venus is the only planet that rotates clockwise.
310
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Summer on Uranus lasts for 21 years.
358