Canadian Space Agency astronaut Chris Hadfield strums his guitar, a Larrivee Parlor, on the International Space Station in December. NASA hide caption

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NASA

The Falcon 9 SpaceX rocket lifted off from space launch complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., early Tuesday. John Raoux/AP hide caption

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John Raoux/AP

SpaceX rocket Falcon 9 at Cape Canaveral in Florida was scheduled to launch Saturday morning, but aborted just before liftoff. Roberto Gonzalez/Getty Images hide caption

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Roberto Gonzalez/Getty Images