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SpaceX Not Planning to Upgrade Falcon 9 Second Stage

SpaceX’s Falcon 9 rocket and Dragon spacecraft lift off from Launch Complex 40 at the Cape Canaveral Air Force Station in Florida on Sept. 21, 2014.Source: NASA
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“SpaceX is no longer planning to upgrade Falcon 9 second stage for reusability,” Tesla’s Elon Musk said in a tweet Saturday.

Musk says he’s accelerating the Big Falcon Rocket instead and calls the new design “very exciting!” and “delightfully counter-intuitive.”