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在我们头顶700公里以上的朗朗天空,即将进行一场昂贵的太空葬礼:铱星系统正在环绕地球运行的66颗卫星将被全部摧毁,此举将耗资3000万到5000万美元。但是如果不这样做,投资者们每个月就要为维持这个无利润系统的运转付出高达1000万美元的费用。造价50多亿美元的依星系统堪称一个人类的科学壮举。这个系统1998年11月1日投入运营,开创了全球个人通信的新时代,被认为是现代通信的一个里程碑:66颗
In the Lang Lang sky more than 700 kilometers overhead, an expensive cosmic funeral is about to take place: the 66 satellites in the Iridium system that are orbiting the Earth will be totally destroyed, which will cost between 30 and 50 million U.S. dollars. But failing this, investors pay up to $ 10 million a month to keep the unprofitable system running. Cost more than 50 billion dollars by the satellite system called a human science feat. The system was put into operation on November 1, 1998, creating a new era of global personal communications and considered as a milestone in modern communications: 66