It takes eight and a half minutes for light to get from the sun to earth.
159
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
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Sound doesn't travel in space.
255
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The population of the Earth has more than doubled since 1950.
151