July 11 (UPI) -- Ex-NASA administrator nominee Jared Isaacman has donated $15 million to support the U.S. Space & Rocket Center's under-construction Inspiration4Skills Training Complex in Huntsville, Al. The Space & Rocket Center's Inspiration4 Skills Training Complex is named after the all-civilian space mission that Isaacman, 42, led over three days as part of a SpaceX endeavor in September 2021, according to Space.com . The Inspiration4 mission was the first space mission that used an all-