Earth is the only planet in our solar system that's not named after a god or goddess.
17
Pluto is smaller than Russia.
9
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
Summer on Uranus lasts for 21 years.
358
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
Mars had an oxygen-rich atmosphere around 4 billion years ago
13