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.
6
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
30
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
If two pieces of metal touch in space, they become permanently stuck together.
807
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121