The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Only 55% of Americans know that the sun is a star.
986
If two pieces of metal touch in space, they become permanently stuck together.
808
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The earth travels through space at 660,000 miles per hour.
189
There are two golf balls sitting on the moon.
721