The asteroid, about the size of a large boulder, only became visible a few days ago.
这颗约为巨石大小的小行星几天前才能被观察到。
There are 20,000 near-Earth asteroids and they do occasionally make an appearance. In 2013, one slammed into Russia, injuring 1,600 people.
近地小行星有20,000颗,偶尔会出现。2013年有一颗小行星撞进了俄罗斯,造成1,600人受伤。
At a conference in April, scientists from around the world were asked how to respond to a make-believe scenario in which an asteroid big enough to destroy a major city might be on track to strike the Earth in eight years.
四月份一次会议上,全球的科学家被问及假设一颗足以摧毁一个大城市的小行星八年内会撞击地球,该如何应对。
The likely response would be using space ships to give the asteroid a nudge, one scientist said.
一位科学家说:“可行的方法是利用宇宙飞船推一下这颗小行星”。
"All we have to do is change its speed a little faster or a little slower so that when it crosses Earth's orbit, it crosses either in front of us or behind us," said Dr. Lori Glaze, director of planetary science at NASA.
NASA行星科学部负责人Lori Glaze博士说:“我们需要做的就是将其速度变快一点或变慢一点,让其经过地球轨道时要么往前偏一点,要么往后偏一点”。
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