Not very big! It would just have to be natural. Not made by man! And
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A question people ask. We really want to send somebody to Mars. Why? The answer
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In two previous blog posts about Newton’s Cannon and Joe Drops the Ball I posed
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Because of Joe’s ball, the Earth may fall into the sun and the moon may fall from the sky.
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The Earth is falling into the sun and the moon is falling from the sky.
Read more...Satellites don’t have or need engines to keep them in orbit. Once launched at their
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