Controversy Surrounds Russia’s Claim that Cosmic Rays Caused Mars Mission Failure

A heartbreaking, out-of-the-gate failure of Russia’s sample return mission early this year created a wide circle of disappointment. For Russia, it was supposed to be a “cavalry charge” toward a hyperambitious goal that would have redeemed a quarter-century of interplanetary impotence but instead became a cosmic humiliation when the craft died shortly after liftoff. For planetary science, it meant that the composition of the Martian moon Phobos remains speculative and its origins still undetermined

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Controversy Surrounds Russia’s Claim that Cosmic Rays Caused Mars Mission Failure