More than 20 million meteoroids enter Earth's atmosphere every day.
139
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
If two pieces of metal touch in space, they become permanently stuck together.
808
Only 55% of Americans know that the sun is a star.
986
Summer on Uranus lasts for 21 years.
358
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160