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NASA's Curiosity rover reaches Mars ridge where water left debris pileup

phys.org NASA's Curiosity rover reaches Mars ridge where water left debris pileup

Three billion years ago, amid one of the last wet periods on Mars, powerful debris flows carried mud and boulders down the side of a hulking mountain. The debris spread into a fan that was later eroded by wind into a towering ridge, preserving an intriguing record of the Red Planet's watery past.

NASA's Curiosity rover reaches Mars ridge where water left debris pileup

Gediz Vallis Ridge was among the last features on the mountain to form

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