NASA's InSight spacecraft, destined for the Elysium Planitia region located in Mars' northern hemisphere, undergoes final preparations at Vandenberg Air Force Base, California, U.S., April 6, 2018. (Photo/NASA)
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NASA's InSight spacecraft, destined for the Elysium Planitia region located in Mars' northern hemisphere, undergoes final preparations at Vandenberg Air Force Base, California, U.S., April 6, 2018. (Photo/NASA)
