The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Summer on Uranus lasts for 21 years.
358
The heart of an astronaut actually gets smaller when in outer space.
216
It takes eight and a half minutes for light to get from the sun to earth.
159
It 'snows' metal on Venus.
13
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175