A comet's tail always points away from the sun.
2
Sound doesn't travel in space.
255
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
There are two golf balls sitting on the moon.
721
Only 55% of Americans know that the sun is a star.
986
The earth rotates more slowly on its axis in March than in September.
145