The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
If two pieces of metal touch in space, they become permanently stuck together.
808
Sound doesn't travel in space.
255
A comet's tail always points away from the sun.
2