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
Sound doesn't travel in space.
255
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
It would take more than 150 years to drive a car to the sun.
569
The light hitting the earth right now is 30 thousand years old.
163
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15