The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
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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
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Jupiter's moon Ganymede, is larger than the planet Mercury!
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It 'snows' metal on Venus.
13
Jupiter is bigger than all the other planets combined.
254
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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