Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
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