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NASA creates amazing ‘chain mail’ wheel for future Mars rovers

Engineer Colin Creager attaches the latest version of the SMA Spring Tire to a test rig in the lab. Imaging Technology Center at NASA Glenn

Reinventing the wheel is generally considered a bad idea. But engineers at NASA’s Glenn Research Center in Cleveland are doing just that — designing an entirely new wheel that will give upcoming Mars rovers the ability to drive long distances on the Red Planet without sustaining damage.

The wheel, made of an ultra-flexible metal mesh, is designed to deform as it rolls over sharp rocks and other irregular features on the Martian surface — and then snap back to its original shape.

NASA hopes the wheel will be more durable than the wheels on NASA’s Curiosity rover. Selfies snapped by Curiosity in 2013 showed that the treads on the rover’s aluminum wheels had sustained significant damage after only about a year on Mars.

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