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As the asteroid encounters atmosphere, friction turn it into a fireball,
當小行星與大氣層相遇時，摩擦使其變成一個火球，
swooping over the Alantic and aimed at Mexico. And,the Alammosaurus.
從阿蘭蒂克上空俯沖下來，瞄準墨西哥。還有阿拉摩龍。
It takes just four minutes to cross the ocean.
橫渡大洋只需要四分鐘。
It crushes and superheats the air surrounding it, transforming gas and debris into white-hot plasma.
它擠壓并加熱周圍的空氣，將氣體和碎片轉化為白熱的乳漿。
At 35,000 degrees, it's burning brighter than a million suns.
在35000度的高溫下，它燃燒得比一百萬顆太陽還要亮。
It takes just 5 seconds to flash through the atmosphare impact seems instantaneous.
它只花五秒就穿過了大氣層，撞擊似乎是在瞬間發生
But hidden within the cataclysm, are a series of discreet events invisible to the naked eye
不過隱藏在這次劇變里的，是一連串肉眼看不見的細微事件
but key to understanding what follows.
也是我們了解隨后情況的關鍵
The asteroid's trajectory is shallow.
這顆小行星的軌道很淺。
It flies in about a 30-degree angel to the surface.
它以30度角的角度飛向地面。
This means the full brunt of its destructive power will be thrown to the north of the impact point.
這意味著它所有破壞性的沖擊力將集中在撞擊點的北部。
Even before the fireball toughes down, its sheer brightness in the sky is unimaginable.
即使在火球觸地之前，它在空中的極端亮度也難以想像
500 miles from ground zero, the light is so intense that makes the Alamosaurus' flesh seem transparent.
在距離地面零點500英里的地方，亮光強到讓阿拉摩龍的身體變得好像是透明的
And burns flash frames of their shadows onto the ground.
還把它們投在地面的影子烙在地上
The scorching light sears their eyeballs, blinding them.
灼熱的光線灼傷了它們的眼球，
They have no way of seeing what's headed their way, but they can feel it.
亮光強到阿拉莫龍無法看到正向它們襲來的是什么。但是卻感受得到
An explosive force of a hundred million megaton, more powerful than all the nuclear weapons ever built.
爆炸威力達一億兆噸，比史上所有核武的威力更強大
