Self-assembling robots and the potential of artificial evolution

What if robots could build and optimize themselves -- with little to no help from humans? Computer scientist Emma Hart is working on a new technology that could make "artificial evolution" possible. She explains how the three ingredients of biological evolution can be replicated digitally to build robots that can self-assemble and adapt to any environment -- from the rocky terrain of other planets to the darkest depths of the ocean -- potentially ushering in a new generation of exploration.