Earth is the only planet in our solar system that's not named after a god or goddess.
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Jupiter's moon Ganymede, is larger than the planet Mercury!
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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.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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The Earth gets heavier each day by tons, as meteoric dust settles on it.
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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
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