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Military models are great 3D printing projects, even more so if they are somewhat functional. [Flasutie] took it a step further by engineering a 3D-printed howitzer that doesn’t just sit pretty—it ...

NASA can send robots to Mars, no problem. But if it's ever going to put humans on the red planet, it has to figure out how to feed them over a years-long mission. So the agency has funded research for ...