Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
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Lightning strikes about 6,000 times per minute on this planet!
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The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Jupiter's moon Ganymede, is larger than the planet Mercury!
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The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236