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1997年10月15日美国东部时间4时43分，美国航宇局的核动力空间探测器“卡西尼”（Cassin）在美国佛罗里达州的卡纳维拉尔角由大力神一4B火箭发射升空，开始了它历时7年、行程长达35X108km的土星之行。在抵达目的地土星之前，重达5．63t的“卡西尼”探测器在引力的作用下将两次?
On the afternoon of October 15, 1997, at 4:43 a.m., NASA’s nuclear-powered space probe Cassin was fired from a Hercules IV 4B rocket at Cape Canaveral, Florida, United States Launched, it began its journey of Saturn, which lasted 7 years and lasted 35X108km. Before arriving at Saturn, a destination, 5.63 tons of “Cassini” detectors will be gravitationally applied twice.