Description:
(Researcher) Jack Parsons was an American rocket engineer and chemist known for his pioneering work in space exploration. He co-founded the Jet Propulsion Laboratory (JPL) and the Aerojet Engineering Corporation. Parsons invented the first rocket engine using composite rocket propellant, which advanced both liquid-fuel and solid-fuel rockets. His groundbreaking research in rocket engineering made significant contributions to the U.S. space program, and he played a key role in establishing important aerospace institutions.