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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
There are two golf balls sitting on the moon.
721
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Some asteroids have other asteroids orbiting them.
131
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236