Two astronauts, billionaire Jared Isaacman and SpaceX engineer Sarah Gillis, completed the world’s first private spacewalk outside a SpaceX capsule, testing new spacesuits and procedures in a risky mission that pushes the boundaries of commercial spaceflight. Reuters reports: The astronauts on the Polaris Dawn mission went one at a time, each spending about 10 minutes outside the gumdrop-shaped Crew Dragon capsule on a tether, as Elon Musk’s company again succeeded in pushing the boundaries of commercial spaceflight. Jared Isaacman, a pilot and the founder of electronic payments company Shift4, exited first, followed by SpaceX engineer Sarah Gillis, while crewmates Scott Poteet and Anna Menon watched from inside. The whole process, unfolding about 450 miles (730 km) above Earth, lasted an hour and 46 minutes. The four astronauts have been orbiting Earth since Tuesday’s launch from Florida. Isaacman is bankrolling the Polaris mission, as he did his Inspiration4 flight with SpaceX

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