The Right Stuff is a 1979 book by Tom Wolfe about the pilots engaged in U.S. postwar research with experimental rocket-powered, high-speed aircraft as well as documenting the stories of the first astronauts selected for the NASA's Project Mercury program. The Right Stuff is based on extensive research by Wolfe, who interviewed test pilots, the astronauts and their wives, among others. The story contrasts the Mercury Seven and their families with other test pilots such as Chuck Yeager, who was never selected as an astronaut.