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卡西尼号土星探测器于2004年进入土星轨道,执行一项为期4年探测土星及其卫星的任务。由于工作表现极为出色,美国航天局将其服役时间延长两年。这是卡西尼号土星探测器飞临土星光环的模拟图。
The Cassini Saturn probe entered Saturn’s orbit in 2004 to carry out a four-year mission to probe Saturn and its satellites. With outstanding performance, NASA extended its service for two years. This is the Cassini Saturn probe flying around the Saturn aura simulation.