Venus is the only planet that rotates clockwise.
310
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
More than 20 million meteoroids enter Earth's atmosphere every day.
139
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 light hitting the earth right now is 30 thousand years old.
163
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160