The fighter jet-piloting Isaacman, whose call name is Rookie, has described himself as a “space geek” since kindergarten. He dropped out of high school when he was 16, got a GED certificate ...

Jared Isaacman, 41, is the founder and CEO of Shift4, a payment processing company. He is best known for his high-profile, private jaunts into space, most recently traveling on a rocket built by ...