Summer on Uranus lasts for 21 years.
358
It takes eight and a half minutes for light to get from the sun to earth.
159
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The earth rotates more slowly on its axis in March than in September.
145
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15