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The Polaris Dawn mission, which Isaacman himself led, marked a historic achievement with extra-vehicular activities (EVA) conducted at altitudes not reached since Apollo 17. This mission was just the beginning, as two more Polaris missions are in the pipeline. Polaris Dawn 2 aims to repair and raise the Hubble Telescope's orbit, while Polaris Dawn 3 is set to be even more revolutionary, leveraging SpaceX's Starship for EVAs, effectively allowing astronauts to operate aboard the largest spacecraft built to date.