Trump picks billionaire astronaut & Musk's associate Isaacman as NASA chief
US President-elect Donald Trump has nominated Jared Isaacman, billionaire CEO of Shift4 Payments, to lead NASA. Isaacman is a business associate of SpaceX owner and Trump ally Elon Musk, having flown to space twice on SpaceX capsules in private missions. Isaacman was the first private citizen to perform a spacewalk and he also co-founded defence aerospace company Draken International.