NASA has developed a new material with the ability to automatically self-seal a bullet hole in just two seconds.
The research has been published in the journal ACS Macro Letters.
The discovery could have a range of applications including repairing spacecraft, ordinary aircraft and ships.
The material is a sandwich of polymer layers with a gel called tributylborane inside. When one of the layers is punctured and the gel is exposed to oxygen it hardens within a second.
NASA was looking for protection for spacecraft and satellites exposed to orbiting junk travelling at 35,000 km/h.
Bill Condie is a science journalist based in Adelaide, Australia.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.