Computer simulations of this impact show that both of the objects would melt in the impact and the dense core of the impactor would fall as molten rock into the liquefied iron core of Earth.

对这次撞击的计算机模拟显示，这两个物体都会在撞击中熔化，而撞击者稠密的核心会以熔融岩石的形式落入地球的液化铁芯中。

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So, what evidence of a liquid water environment did we find in rock samples taking from the oldest rocks on Earth?

那么，在从地球上最古老的岩石中提取的岩石样本中，我们发现了什么液态水环境的证据呢？

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On 6th August, 1996, scientists discovered a piece of rock from Mars, which fell to the Earth 13,000 years ago.

1996年8月6日，科学家们发现了一块来自火星的岩石，它在13000年前落到了地球上。

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Then,within the last twenty million years, movements in the earth pushed the rock upward, forming the Guadalupe Mountains.

VOA: special.2009.12.07

Other areas of rock look as if some huge creature violently broke and twisted the Earth to create unusual, sometimes frightening shapes.

VOA: special.2011.08.03

Research has shown that these possible fossils were not formed while the rock was here on Earth.

VOA: special.2010.07.28

Officials moved quickly to calm residents, saying there was no threat to human life from the rock fragments that hit the earth outside Chelyabinsk.

WSJ: Meteorite Hits Russia, Causing Panic

The fund will be called Third Rock Ventures (because Earth is the third rock from the sun).

FORBES: Biotech Battle Scars

Humans would have many thousands of years to select the appropriate asteroid and develop the necessary technology to deflect the giant rock in the direction of Earth.

BBC: Blue Marble Nasa