Will Mars colonists live in robot-dug caves like these?

Otherworldly web: The caves would feature basalt fibers and natural hexagonal shapes.

(Credit: ZA Architects)

As they say, everything old is new again. That would be an especially delicious irony if future humans once again become cavemen — on Mars.

A vision for troglodyte existence put forth by Germany’s ZA Architects calls for astronauts to live in caverns under the surface of Mars that would be dug out by solar-powered robots.

This bold concept imagines living underground in tunnels chiseled from basalt that naturally forms in hexagonal shapes. Just imagine the house parties.

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