Learn about the development of new materials and technologies for “soft” robots, in this video from NOVA Digital. Engineers are working on creating flexible, strong robots that can do things that conventional robots and humans cannot. For example, soft robots could act like a heart valve or assist humans in the form of a wearable robotic skin that covers the entire body. There are a variety of approaches to building soft robots. Their future relies on the development of flexible materials and circuitry.