Jupiter's moon Ganymede, is larger than the planet Mercury!
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There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The earth rotates more slowly on its axis in March than in September.
145
The heart of an astronaut actually gets smaller when in outer space.
216
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
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The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Summer on Uranus lasts for 21 years.
358