Meet the boy who named NASA's Mars rover
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One young schoolboy may be watching NASA's Mars 2020 mission launch more closely than others. As part of the naming contest for US schoolchildren, almost 4,700 volunteer judges narrowed a pool of 28,000 contest entries down to 155 semifinalists. Once it was down to nine finalists, the public was invited to vote online. 13-year-old Alex Mather, who lives in Virginia, submitted the winning name, "Perseverance", after reading about the challenges of past Mars missions.