8.3K views · 159 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

4.2K views · 135 reactions |  America’s Leap – The Explorer 1 Mission (1958)  Explorer 1: America’s First Step Into Space #nasa #NASA #astronomy #spaceexploration | Space Xplore | Facebook

409 reactions · 75 shares | This week, we’re celebrating Explorer 1, the first U.S. satellite. Built by JPL, its Jan. 31, 1958, launch began 60 years of America in Space: https://explorer1.jpl.nasa.gov/ #ExploreAsOne | NASA Jet Propulsion Laboratory | Facebook