Photo credit: Lockheed Martin More

From Popular Mechanics

Fifty years ago humans walked on the moon. Twenty years ago humans started living in orbit for months at a time. Where will we go next? For NASA, one of the most promising proposals is to build a space habitat for astronauts that will orbit the moon.

To help NASA achieve such a complicated endeavor, Lockheed Martin, one of the contractors for the habitat, is building a full-scale prototype out of an old cargo container designed to fly on the Space Shuttle.

An orbiting moon station has a number of unique challenges that the International Space Station doesn’t have. Chief among them is that a moon habitat would be much farther away.

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