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 last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
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
It takes eight and a half minutes for light to get from the sun to earth.
159
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The population of the Earth has more than doubled since 1950.
151
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15