NASA’s Perseverance rover is headed for a compact 5-mile-by-4-mile patch on the edge of an ancient river delta on the planet Mars. It’s filled with cliffs, pits, sand dunes and fields of rocks, any of which could doom the $3 billion mission. We talk with program scientist for the project Dr. Mitch Schulte about the incredible difficulties of the mission and whether the probe might be point to ancient life on Mars?

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