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
Sound doesn't travel in space.
255
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
It would take more than 150 years to drive a car to the sun.
569
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
If two pieces of metal touch in space, they become permanently stuck together.
808