USPS: The missile mail experiment took place on June 8, 1959
June 7, 2024 The U.S. postal system has been an early adopter of newfangled — and even dangerous — modes of delivery: Airmail. Pneumatic tubes. The Pony Express. But perhaps no experiment was more out-there than the organization’s brief flirtation with missile mail. On June 8, 1959, a Regulus guided missile loaded with 3,000 letters was launched from…