Geography, 03.03.2020 03:28 Lesquirrel
Assume that our Moon is hit by 25 million tiny meteorites every day. On average, it takes about 20 such impacts to obliterate a footprint left by an Apollo astronaut on the surface of the Moon. About how long would you estimate that it would take to erase evidence of a single footprint
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Assume that our Moon is hit by 25 million tiny meteorites every day. On average, it takes about 20 s...
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