SpaceX Crew-3 astronauts are pictured during preflight training at NASA's Kennedy Space Center.
jsc2021e038369 (July 26, 2021) — SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn, Raja Chari and Kayla Barron are pictured during preflight training at NASA’s Kennedy Space Center in Florida. Credit: SpaceX