Don Pettit is an American astronaut and engineer known for his work with NASA. He was born on April 21, 1955, in Teaneck, New Jersey. Pettit has flown on three space missions, including two long-duration stays aboard the International Space Station (ISS), where he conducted scientific research and experiments. In addition to his astronaut career, Pettit is also a skilled scientist with a background in chemical engineering. He earned his doctorate from the California Institute of Technology and has contributed to various projects in space exploration, including the development of new technologies for future missions.