For astronauts living in space with objects zooming around them at 22,000 miles per hour like rogue super-bullets, it’s good to have a backup plan. Shields and maneuvering protect spacecraft well, but to add another layer of potentially life-saving protection, scientists have developed a material designed to heal itself in less than a second in case it gets punctured.
http://pubs.acs.org/doi/abs/10.1021/acsmacrolett.5b00315
