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Five of the World’s Tiniest Robots

Allow me to take you on a trip down my memory lane. As a young lad, a film I saw captured my imagination: Fantastic Voyage, a 1966 release about people shrunk to microscopic size and sent into the body of an injured scientist to repair his brain. The idea struck...

Paving the Way for Off-Earth Factories

European aerospace company Airbus will send a metal-crafting 3D printer to the International Space Station next year as a first step in its plans to set up an orbital satellite factory.  The printer, called Metal3D, can work with metals that melt at temperatures...