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. Although shields and fancy maneuvers could help protect space structures, scientists have to prepare for the possibility that debris could pierce a vessel. One team reports on a new material that heals itself within seconds and could prevent structural penetration from being catastrophic.
via Science Daily
Zazzle Space Exploration market place
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