could have been the world's first satellite launch, had a fourth stage been loaded and fueled. A fourth stage would have allowed the nose cone to overshoot the target and enter orbit.

The first launch of a Juno I launch vehicle was in early 1958, with the successful launch of Explorer 1 satellite on February 1, 1958, at 03:47:56 GMT, after the Soviet Union's Sputnik 1 on October 4, 1957. The launch had been scheduled for