SpaceX CEO Elon Musk speaks after unveiling the Dragon V2 spacecraft in Hawthorne, California May 29, 2014. Space Exploration Technologies announced April 27, 2016, it will send uncrewed Dragon spacecraft to Mars as early as 2018, a first step in company founder Elon Musk's goal to fly people to another planet. REUTERS/Mario Anzuoni/File Photo      TPX IMAGES OF THE DAY      - RTX2BYNX
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