Modern space exploration mostly relies on shipments from Earth, but these rarely include fresh fruits or vegetables. Having reliable sources of fresh food—rich in vitamins, antioxidants, and fibre—could help keep astronauts healthy on long missions.
Imagine a field of microscopic flowers that can fold, unfurl, and even kick off a chemical reaction without a gardener in sight. Researchers at the University of North Carolina have at Chapel Hill built just such shape-shifting “soft robots,” and the most interesting part isn’t what they are, but what they might be able to do.