The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
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
The heart of an astronaut actually gets smaller when in outer space.
216
There are two golf balls sitting on the moon.
721
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
A comet's tail always points away from the sun.
2