A comet's tail always points away from the sun.
2
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Summer on Uranus lasts for 21 years.
358
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
If two pieces of metal touch in space, they become permanently stuck together.
808