The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Only 55% of Americans know that the sun is a star.
986
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Venus is the only planet that rotates clockwise.
310
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
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