Title: Heroes of the Space Age
Subjects: Armstrong, neil, 1930-2012, Gagarin, yuri alekseevich, 1934-1968, Glenn, john, 1921-2016, Aldrin, buzz, 1930-, United states, national aeronautics and space administration, Astronautics, biography, Soviet union, biography, Biography, Officials and employees, Astronauts, Employees, United States. National Aeronautics and Space Administration, United States