You may not be able to grow bigger muscles out of thin air, but you can 3D print them in microgravity, scientists at ETH Zurich have now established. "3D printing" refers to a type of manufacturing ...

The day is coming when you may walk past a robot and have no idea it was a robot. Over years of engineering, we've given robots skeletons, brains, senses, and even a nervous system. Muscles have ...