Tech billionaire returns to Earth after first ever commercial spacewalk: Why it matters for Elon Musk’s space company

Tech billionaire Jared Isaacman and his crew, aboard SpaceX’s Dragon capsule, successfully returned to Earth on Sunday (September 15) after a five-day stay in space. A part of SpaceX’s Polaris Dawn mission, this is historic because two members of the group conducted the world’s first private spacewalk.