Christopher Sembroski is an American data engineer, Air Force veteran, and commercial astronaut. He flew to orbit on Inspiration4, a private spaceflight funded by billionaire Jared Isaacman.
Jared Taylor Isaacman is an American billionaire entrepreneur, pilot, and commercial astronaut who has served as the 15th administrator of NASA since December 2025. He is the founder of Shift4 Payment
Official portrait, 2025
Isaacman's MiG-29UB performing at EAA AirVenture Oshkosh in 2023
Isaacman (second from left) with his Inspiration4 crewmates at the Johnson Space Center.
Isaacman speaks at his first confirmation hearing.