The light hitting the earth right now is 30 thousand years old.
163
A comet's tail always points away from the sun.
2
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
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's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147