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Visiting the Moon’s surface is the next logical step in human exploration of the Solar System, and building a Moon base is part of this vision. But getting supplies there won’t be straightforward.
One of the keys to any sustainable long-term presence in space will be the capability to be, as far as possible, Earth-independent. Any necessary structures, equipment and spare parts will eventually need to be made in-situ and on-demand. Currently the most feasible way of doing this would be to use a 3D printer. One study supported under ESA's Discovery and preparation programme considered all aspects of the construction and operation of a lunar base. It explored exactly how 3D printing could realistically be used to accomplish the dream of living on the Moon.