On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
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
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
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
Today's top fuel dragsters take off with more force than the space shuttle.
120
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Astronauts cannot burp in space.
232
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9