This puzzle of a NASA JPL Visions of the Future Poster advertises the alignment of all outer planets that occurs only once every 175 years. NASA's voyager mission used gravity from each of the planets to propel it to the next. What would it be like if you could ride one of these shuttles as a tourist?

Starting with the records of the National Advisory Committee for Aeronautics, formed in 1915 to study problems of flight and conduct research in aeronautics, the National Archives holds in trust the records of NASA and others related to aeronautics, including the mission photographs taken during the space shuttle program from 1981 to 2011.