House on Mars – level 3
National Geographic, Royal Observatory Greenwich astronomers, and Stephen Petranek, the author of “How We’ll Live on Mars”, created a model of what could once be a Martian house. People built it at the Royal Observatory Greenwich in London.
The house is designed to be situated in Valles Marineris, a system of canyons that runs along the equator of Mars, and the house will make oxygen and supply its own water by sucking in the Martian atmosphere, which is about 100% humid on most nights.
People on Mars will also have 3D printers, which will make almost everything that they would need, from wrenches to plates and toothbrushes.
This all may sound like science fiction, but according to Elon Musk, a million people could be living on Mars by the mid-2060s.
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