If two pieces of metal touch in space, they become permanently stuck together.
808
Sound doesn't travel in space.
255
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
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 rotates more slowly on its axis in March than in September.
145
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Lightning strikes about 6,000 times per minute on this planet!
158