Marsha Ivins spent 37 years at NASA as an engineer and astronaut, flying five space missions and logging over 1,300 hours in space. She played a key role in designing the Space Shuttle cockpit, testing aircraft systems, and shaping future space missions. With over 7,000 flight hours in NASA aircraft, she’s an expert in human spaceflight, crew operations, and the future of space exploration. Beyond NASA, Marsha contributed her expertise to the movie Interstellar, ensuring its space scenes were as realistic as possible.