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据美国航天网站报道,因燃料即将耗尽,NASA计划2017年9月15日结束土星探测器“卡西尼”的任务,探测器将在此之前将进行一些降轨机动,以便最终受控落入土星大气。这将是“卡西尼”第183次主发动机点火,也是最后一次。2016年12月,“卡西尼”将对整个土星主环进行分辨率优于1km的成像,特别是拍摄A环中不同寻常的“螺旋桨”(propellers)形状。这些“螺旋桨”长约数千千米、宽约数千米,是一些小尺寸、看不见的小卫星导致的。科学家可借助更清晰的图像,了解它们的演变和结构,通过观测这些嵌入土星环中
NASA plans to conclude the Saturn probe “Cassini” on September 15, 2017 due to the near-exhaustion of fuel, and the probe will have some derailment maneuvers prior to this so that it will eventually suffer Control falls into Saturn’s atmosphere. This will be the ignition of the 183rd main engine of Cassini and also the last one. In December 2016, Cassini will image the entire Saturn main ring at resolutions better than 1km, especially for the unusual “propellers” in the A-ring. These “propellers” are about thousands of kilometers long and several kilometers wide and are caused by small, invisible small satellites. Scientists can use clearer images to understand their evolution and structure, by observing these embedded Saturn rings