Charles D. Gemar (NASA astronaut)

Charles D. Gemar is a retired NASA astronaut and former United States Marine Corps officer. He flew on three space shuttle missions, participating in important tasks such as deploying satellites and conducting scientific experiments in orbit. With a background in engineering and aviation, Gemar contributed to NASA’s human spaceflight programs by supporting mission operations and space station assembly. His experience spans over 300 hours in space, making him a seasoned astronaut. After retiring from NASA, he continued to share his expertise in engineering and leadership roles, inspiring future generations in science and space exploration.