Two Planet Steel

NASA Contract:

A prototype clean-steel twin oven is pictured above.
It was made under a NASA contract.
It is small enough to fit in current Mars landing craft.

Earth:
To build steel-making plants that are driven by renewable energy, wherein the cost of the steel produced is so low that they replace blast furnaces (and so remove the huge carbon dioxide emissions of blast furances).
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Mars:
To enable the start of human settlement of Mars by reducing its cost with small-scale steel production and 3D metal powder printing on Mars.
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