cover of episode 8: Chicxulub Asteroid Impact - The Day the Dinosaurs Died

8: Chicxulub Asteroid Impact - The Day the Dinosaurs Died

2022/6/26
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6600万年前，一颗巨大的小行星以极高的速度撞击了地球的尤卡坦半岛，引发了巨大的灾难。这次撞击释放的能量相当于数十亿颗原子弹，导致了巨大的海啸、火灾和全球性的“撞击冬天”。撞击冬天持续了数年，阳光被遮蔽，植物无法生长，食物链崩溃，最终导致了包括恐龙在内的70%地球物种的灭绝。这次撞击也标志着白垩纪的结束和新生代的开始。撞击后，地球经历了漫长的恢复期，火山爆发等地质事件进一步加剧了环境的恶化，但最终地球生态系统逐渐恢复，哺乳动物开始繁荣。希克苏鲁伯陨石坑的发现以及对地层中铱元素和冲击石英的分析，证实了小行星撞击理论。虽然恐龙灭绝的具体过程尚不完全清楚，但小行星撞击无疑是导致恐龙灭绝的主要原因。

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The Chicxulub asteroid impact caused massive destruction, including tsunamis, fires, and a crater formation, leading to the extinction of dinosaurs and 70% of life on Earth.

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The Chicxulub Asteroid Impact - The Day the Dinosaurs Died  One of the deepest scars on our planet is hidden beneath the Yucatán Peninsula and the Gulf of Mexico. The buried crater, over 90 miles in diameter, was created when a massive asteroid struck the planet 66 million years ago and brought a calamitous end to the reign of dinosaurs.  

Though dinosaur extinction probably took weeks or months, in just one day, 425 feet of material accumulated where the asteroid hit with the power of 10 billion atomic bombs. The blast ignited trees and plants for thousands of miles -- which were quickly extinguished by mega tsunamis with waves that may have reached as far inland as Illinois.  

And at the low-end estimate of 10.1 on the Richter scale, the subsequent earthquake would have been more powerful than anything ever measured or experienced by humans.  And then things got worse.   

Let's find out why.

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