NASA prototype rover can split in two, could climb down deep Mars craters – CNET

NASA JPL took the DuAxel out for a test run in the Mojave Desert.
NASA/JPL-Caltech/J.D. Gammell
NASA’s car-size Mars rovers are awesome, versatile machines capable of traversing rugged terrain. But they’re not made to descend down the sides of craters. For that, NASA would need something like its DuAxel prototype rover, a wild concept that is two rovers in one.
When all together, DuAxel is a four-wheeled rover. The rear can anchor itself to the ground while the front goes free on two wheels. …

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