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２０××年１０月，一个月朗星稀的夜晚，射电望远镜发现了一个危险的“杀手”──一颗宽度接近１．６千米的小行星，正以每小时１０．８万千米以上的速度自太空猛冲向地球。初看起来，它像是一颗很普通的小行星，同成千上万颗在太阳系里疾飞的其他小行星没什么两样，除了一点
In October 20XX, a month after a starry night, radio telescopes discovered a dangerous “killer” - an asteroid with a width of nearly 1.6 kilometers and at an altitude of more than 108,000 kilometers per hour The speed of storming from space to the earth. At first glance, it looks like a very ordinary asteroid, no different from the thousands of other asteroids that flew in the solar system, except for a little