The 1-ton Curiosity rover had been heading for Mount Sharp via Hidden Valley, a sandy swale that's about the length of a football field. But Curiosity turned back shortly after entering the valley, finding the sand surprisingly slippery.
The 1-ton Curiosity rover had been heading for Mount Sharp via Hidden Valley, a sandy swale that's about the length of a football field. But Curiosity turned back shortly after entering the valley, finding the sand surprisingly slippery.
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