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Mars And Back: Is NASA’s Groundbreaking Research Mission Really About Money And Politics?

NASA's Mars 2020 rover will store rock and soil samples in sealed tubes on the planet's surface for future missions to retrieve, as seen in this illustration.
NASA's Mars 2020 rover will store rock and soil samples in sealed tubes on the planet's surface for future missions to retrieve, as seen in this illustration. NASA/JPL-Caltech

An endeavor to retrieve samples from the red planet is in the works. Some scientists wonder if it’s a wise investment.

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