Prior to Polaris Dawn, Isaacman was the only member of the four Polaris Dawn crew to have been to outer space before.

The mission, which Isaacman funded with SpaceX, was filled with landmark moments, from the records heights they reached on the day of the launch to the pioneering spacewalk they were able to complete.

But the milestones they reached weren't just for bragging rights: The Polaris Dawn crew helped to set the stage for future human space exploration missions.

One year ago, billionaire Jared Isaacman and his crew of three private Polaris Dawn astronauts boarded a SpaceX Dragon capsule for .

When the Dragon spacecraft , the vehicle carried the astronauts further into space . Two days after launching, Isaacman and his crew further made history: Becoming the and complete a spa

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