Venus is the only planet that rotates clockwise.
310
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
Jupiter is bigger than all the other planets combined.
254
A comet's tail always points away from the sun.
2
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82