An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Buzz Aldrin’s mother’s maiden name was Moon.
9
It takes eight and a half minutes for light to get from the sun to earth.
159