The Juno I was a four-stage American booster rocket which launched America's first satellite, Explorer 1, in 1958. A member of the Redstone rocket family, it was derived from the Jupiter-C sounding rocket.
The PGM-11 Redstone was the first large American ballistic missile. A short-range ballistic missile (SRBM), it was in active service with the United States Army in West Germany from June 1958 to June 1964 as part of NATO's Cold War defense of Western Europe. It was the first US missile to carry a live nuclear warhead, in the 1958 Pacific Ocean weapons test, Hardtack Teak. Chief Engineer Wernher von Braun personally witnessed this historic launch and detonation.
WRESAT (Weapons Research Establishment Satellite) was launched on 29 November 1967 using a modified American Redstone rocket with two upper stages known as a Sparta from the Woomera Test Range in South Australia. The Sparta was donated by the United States. The launch made Australia the seventh nation to have an Earth satellite launched, and the third nation to launch one from its own territory, after the Soviet Union and the United States