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  • The earth is constantly being hit by particles of dust, tiny rocks, and other space debris.

    地球不斷被塵粒、小石子和其他宇宙中的碎片撞擊。

  • These small objects usually burn up high in the atmosphere, producing the shooting stars you may have seen while looking up at the night sky.

    這些小物體通常會在大氣層中燒起,變成你仰望夜空時,可能會看見的流星。

  • But astronomers are always on the lookout for bigger asteroids, especially the ones that may be on course to strike our planet.

    但天文學家總在密切關注更大型的小行星,尤其是那些很可能撞擊我們星球的。

  • While rare, these collisions with rocks from deep space do happen and the results can be downright terrifying.

    儘管稀少,這些來自外太空的石頭碰撞地球確實有可能發生,且後果極為駭人。

  • An asteroid just seven meters in diameter will explode with the power roughly equal to the atomic bomb that was used on Hiroshima, leveling buildings up to a mile away.

    一顆直徑 7 公尺的小行星爆炸的威力大約與使用在廣島的原子彈一樣,能把建築物升起至一英里高。

  • A larger one hundred meter diameter asteroid has more power than the largest nuclear weapon ever tested and could level an entire city!

    一個更巨大,直徑 100 公尺的小行星具有比有史以來測試過的最大核武更強的破壞力,可以將一座城市夷為平地!

  • But there are even bigger asteroids out in space.

    但宇宙中甚至有比這更大的小行星存在。

  • And a run in with one of these would have a truly global impact.

    這之中若有一顆碰撞地球,一定會造成全球性影響。

  • An insanely giant asteroid, one around ten kilometers in diameter, would create an impact crater one hundred and eighty kilometers wide and twenty kilometers deep.

    一顆直徑大約 10 公里的超大型小行星碰撞會造成 180 公里廣、20 公里深的撞擊坑。

  • Beyond just the impact it would cause worldwide earthquakes and mega tsunamis over one hundred meters high.

    除了這個影響外,也會造成全球地震和超過 100 公尺高的巨型海嘯。

  • Dust and ash thrown up into the atmosphere would cover the surface of the earth for years.

    塵土和灰燼被排放到大氣層中,覆蓋地球表面數年。

  • A massive die off of plants and animals would follow.

    隨後,大量動植物會全部死亡。

  • Basically the end-of-life as we know it.

    基本上就是我們所知的生命盡頭。

  • And this has happened before.

    而這之前確實發生過。

  • An asteroid of roughly that size is what we think killed the dinosaurs.

    我們認為滅絕恐龍的就是大約這個大小的小行星。

  • And if an enormous asteroid the size of the earth were to hit, the planet would be completely obliterated, leaving nothing but the earth's core and creating a new asteroid belt between Venus and Mars.

    若有個跟地球相同體積的小行星撞擊地球,地球將徹底消失僅留下地核,創造金星與火星之間新的小行星帶。

  • But don't worry too much.

    但不用太擔心。

  • Giant asteroids the size of the one that wiped out the dinosaurs only hit the earth about every fifty to one hundred million years.

    將恐龍滅絕的那種巨型小行星每 5000 萬到 1 億年才會撞擊地球一次。

  • Of course, the last one was sixty-six million years ago so I guess you could say we are due.

    想當然耳,距離上一次是 6600 萬年前,所以我猜你可以說我們是安全的。

The earth is constantly being hit by particles of dust, tiny rocks, and other space debris.

地球不斷被塵粒、小石子和其他宇宙中的碎片撞擊。

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B2 中高級 中文 美國腔 小行星 地球 撞擊 直徑 恐龍 大氣層

一揭行星撞地球的後果! (What If Earth Was Hit By A MASSIVE Asteroid?)

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    doris.lai 發佈於 2020 年 09 月 18 日
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