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Scientists say they have unearthed details how the dinosaurs were wiped 65 million years ago. A team geophysicists is analyzing rock formations a crater the seabed off Mexico. The rocks contain the remnants of the cataclysmic aftermath a gigantic asteroid impacting Earth. The scientists say the layers of rock they have extracted reveal a step-by-step account of the destruction that happened the impact as rock and sediment settled top of each other in revealing layers. Geophysicist Jay Melosh from Purdue University said: "It tells us what went on inside the crater on that day of doom that killed the dinosaurs. All of this mayhem is directly recorded the core."

Scientists say the asteroid was three to four kilometers wide. It smashed the ocean and created a hole 160kms wide and 20kms deep. This triggered a chain reaction earthquakes, tsunami, icecap melting, landslides and fires that forever changed the geology and life forms Earth, killing the dinosaurs. The asteroid's impact hurled rock and minerals and created a massive crater. Molten rock fell back into the crater, which was then filled ocean water from tidal waves. This water was full soil, vegetation, animal life and other debris, all which settled in layers ready for scientists to analyze millions years later. The scientists say this layer-forming process took just a few hours.

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