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SA视讯> 社区> 出国考试> 国际趣闻> 什么?2022年小行星撞地球?NASA密切观察中...

  美国国家航空航天局的科学家称,一颗体型接近埃及吉萨大金字塔大小的小行星可能于2022年5月6日与地球相撞,其撞击地球的能量相当于投放广岛原子弹的15倍。该小行星撞击地球的几率为3800分之一。

  An asteroid the size of the Great Pyramid of Giza in Egypt, is barrelling towards Earth and NASA have revealed the exact date it could strike our planet.

  一颗大小类似埃及吉萨大金字塔的小行星正高速冲向地球,美国国家航空航天局公布了该行星可能撞击地球的确切日期。

  barrel [ˈbærəl]:v.快速移动

  NASA have released details of an asteroid, known as JF1, that is heading towards Earth. The rock, a whopping 420ft across, is predicted to collide with the planet on May 6, 2022, with devastating consequences. The American space agency have said that if the asteroid continues on its current trajectory, it could strike with a force of 230 kilotons (230,000 tonnes of TNT).

  美国国家航空航天局公布了一颗名为JF1的小行星的细节,这颗小行星正朝着地球行进。这颗巨大的小行星直径420英尺(约合128米),预计将于2022年5月6日与地球相撞,并带来毁灭性的后果。美国国家航空航天局表示,如果这颗小行星继续沿着目前的轨道运行,它撞击地球的威力将相当于23万吨TNT炸药。

SA视讯   trajectory [trəˈdʒektəri]:n.轨道

  The impact would be more than 15 times larger than the atomic bomb dropped on Hiroshima in 1945, which liberated energy equivalent to approximately 15 kilotons of TNT.

SA视讯   这颗小行星如果撞击地球,带来的影响将是1945年投放在广岛的原子弹的15倍以上,广岛原子弹释放出的能量相当于约1.5万吨TNT炸药。

SA视讯   Scientists have said that if JF1 were to hit a populated area, it would wipe out an entire city instantly, potentially causing millions of deaths.

  科学家们曾表示,如果JF1撞到人口稠密的地区,将立即摧毁整个城市,有可能造成数百万人死亡。

  But they warn that even if it were to splash down in the remotest part of the Pacific Ocean it would still cause devastating tsunamis and a “nuclear winter” that could severely impact life on Earth.

  但他们警告说,即使它坠落在太平洋最偏远的地方,也会引发毁灭性的海啸和“核冬天”,可能对地球上的生命造成严重影响。

SA视讯   As a result, the asteroid has been flagged for close attention by their near-Earth monitoring system, Sentry.

  因此,这颗小行星被美国国家航空航天局的近地监测系统“哨兵”标记为密切关注。

  NASA said: “Sentry is a highly automated collision monitoring system that continually scans the most current asteroid catalogue for possibilities of future impact with Earth over the next 100 years.”

SA视讯   美国国家航空航天局表示:“‘哨兵’是一个高度自动化的碰撞监测系统,它不断扫描最新的小行星目录,以寻找未来100年与地球相撞的可能性。”

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