The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
More than 20 million meteoroids enter Earth's atmosphere every day.
139
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160