Lindee, Susan M2023-05-222023-05-222007-10-042017-10-19https://repository.upenn.edu/handle/20.500.14332/37338It is not an anniversary we usually celebrate and it was not any fun for the United States at the time. Fifty years ago today, on the night of October 4, 1957, a 22-inch aluminum ball, primitive by today's standards, sent the American public, and the policy and scientific elite, into high crisis.[1]This material, "Sputnik, Cold War Nostaliga, and 9/11: The Lessons of Sputnik post-9/11," was published by the Center for American Progress (https://www.americanprogress.org/").Aerospace EngineeringHistory of Science, Technology, and MedicineMilitary HistoryUnited States HistoryArticle