The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
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
It takes eight and a half minutes for light to get from the sun to earth.
159
It 'snows' metal on Venus.
13
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
