Jupiter's moon Ganymede, is larger than the planet Mercury!
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Lightning strikes about 6,000 times per minute on this planet!
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Sound doesn't travel in space.
255
The Earth gets 100 tons heavier every day due to falling space dust.
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The heart of an astronaut actually gets smaller when in outer space.
216
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
More than 20 million meteoroids enter Earth's atmosphere every day.
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