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
Only 55% of Americans know that the sun is a star.
986
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
It takes eight and a half minutes for light to get from the sun to earth.
159
Venus is the only planet that rotates clockwise.
310
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219