8.1K views · 157 reactions | America launched its first satellite, Explorer 1, #OTD in 1958, a mere four months after the Soviets launched Sputnik. But what if the Navy's December 1957 launch of Vanguard had been successful? Would NASA have been created? Travel back to the 1950s with this Explorer 1 documentary on NASA+ ▶️ https://go.nasa.gov/4hcf5Kk | NASA History | Facebook

19K views · 798 reactions | Check out this Development of the X-15 Rocket Plane - 1962 NASA Documentary Research Project X-15. NASA History This Saturday, Oct. 16, visitors will have the opportunity to look inside the X-15A-2 rocket plane that reached the blazing speed of Mach 6.7 in October of 1967. | National Museum of the U.S. Air Force | Facebook