The last time humans set foot on the moon in 1969, we made a few shots, nailed a flag, took some samples of lunar rocks and left a few footprints ... but we did not stay for long. Now NASA with the world's space agencies plan to return to the moon, but this time to stay longer, and establish a permanent lunar base from initially 4 astronauts.
This colony on the moon could provide the basis for future travel to other parts of the solar system, in principle, to Mars and then on to the conquest of distant worlds. This
want to make the base be self-sufficient and not have to rely constantly supplies arrived from the earth as it is very expensive. To achieve this are investigating ways to extract oxygen from lunar rocks, and use it not only for breathing, as well as fuel and to produce water by combining it with hydrogen.
also want to grow food in small greenhouses (currently running a project to send a greenhouse in 2014).
The base would be at one pole of the moon and the lunar poles that are more favorable conditions, in principle, be powered by solar energy obtained through solar panels, one of the reasons which the base will sit at the poles as there are more hours of light. Since the moon's gravity is one sixth of the land, the muscles tend to atrophy, as the bones, to combat muscle atrophy and bone that astronauts must undergo a rigorous exercise program during his stay of the Earth.
settlement in principle of a moon base is set for 2020, will be the first trip to the moon in the 21st century.
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