The surface of the Moon is covered with thousands of craters, some of which deeper than most of the mountains here on Earth and large enough to accommodate a few Grand Canyons. Nonetheless, NASA wants to send a manned mission back to the Moon by the end of 2020, but they hope the next trip to the Moon wouldn't be just a simple visit. Establishing a lunar base is amongst the priorities of the US space agency, however in order to do that, they must first find water.
There is evidence that...
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