The population of the Earth has more than doubled since 1950.
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There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Some asteroids have other asteroids orbiting them.
131
Lightning strikes about 6,000 times per minute on this planet!
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If two pieces of metal touch in space, they become permanently stuck together.
808
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