Sound doesn't travel in space.
255
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
41% of the moon is not visible from earth at any time.
103
Lightning strikes about 6,000 times per minute on this planet!
158
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
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 Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221