page_title: Juno I
hierarchical_section_title: Juno I
context_page_description: The Juno I was a four-stage American booster rocket that 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. It is commonly confused with the Juno II launch vehicle, which was derived from the PGM-19 Jupiter medium-range ballistic missile.
context_section_description: The Juno I was a four-stage American booster rocket that 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. It is commonly confused with the Juno II launch vehicle, which was derived from the PGM-19 Jupiter medium-range ballistic missile.
caption: Juno I satellite launch vehicle carrying Explorer 2. (USAF)
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