In 1950 – CBS’s mechanical color system is the first to be licensed for broadcast by the FCC. Color TV would not become widespread until the late 1960s.
In 1957 – The Jodrell Bank observatory, with the world’s largest radio telescope, designed by Sir Bernard Lovell, began operation. It’s first job was to track the just-launched Sputnik satellite.
In 1958 – NASA launched the lunar probe Pioneer 1 the first of the Pioneer program. It didn’t get very far, falling back to Earth and burning up in the atmosphere.