As scientists begin to think more seriously about building bases on celestial bodies, such as the moon, the idea of space mining is becoming more and more popular. Considering that the distance between earth and the moon is approximately 385 thousand kilometres, and considering that gravity needs to be overcome to get there, it is a very attractive idea to use the existing resources on the moon for constructing future moon buildings.
The same applies to all other planets humanity reaches in future space exploration.
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