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Good-luck peanuts made their first appearance in 1964 during the Ranger 7 mission. JPL had six failures prior to this effort. The Ranger 7 launch day arrived and with it came the peanuts. The mission performed flawlessly, as did its peanut-powered successors, Ranger's 8 and 9. Up until the Voyager mission, peanuts showed up only at launch. Nowadays, they are often seen in mission control facilities during critical mission stages such as orbit insertions, flybys and landings, or any other event of high anxiety or risk.
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