Why did Neil Armstrong choose to join the NASA?

Neil Armstrong joined NASA due to his passion for aviation and space exploration, coupled with his desire to contribute to the advancement of human knowledge and technology. His background as a naval aviator and test pilot aligned well with NASA's mission, and he was drawn to the opportunity to be at the forefront of groundbreaking research and exploration. Additionally, the excitement of being part of the historic Apollo program and the chance to make a significant impact in space travel were key factors in his decision.