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
There are two golf balls sitting on the moon.
721
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Pluto is smaller than Russia.
9
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