The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
Sound doesn't travel in space.
255
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12