The population of the Earth has more than doubled since 1950.
151
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
Summer on Uranus lasts for 21 years.
358
Some asteroids have other asteroids orbiting them.
131
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Astronauts cannot burp in space.
232