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While the moon's surface is battered by millions of craters, it also has over 200 holes -- steep-walled pits that in some cases might lead to caves that future astronauts could explore and use for shelter, according to new observations.
via Science Daily
Zazzle Space Exploration market place
While the moon's surface is battered by millions of craters, it also has over 200 holes -- steep-walled pits that in some cases might lead to caves that future astronauts could explore and use for shelter, according to new observations.
via Science Daily
Zazzle Space Exploration market place
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