Around 66 million years ago, an asteroid larger than Mt… 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. ... (CHEEK-sheh-loob) in Mexico in the form of a gargantuan crater more than 110 miles (180 kilometers) wide. Scientists basically knew what happened here – but the full story that’s emerging beggars belief. The idea was not always universally accepted. The Chicxulub crater is a very big crater.Some scientists believe that the Chicxulub crater was made by the meteor that caused the extinction of the dinosaurs, and many other animals.It is partly in the Yucatán Peninsula in Mexico and partly underwater.. Over the years, many theories as to why dinosaurs went extinct were put forward (including some that suggested an asteroid strike), but none offered a entirely satisfactory explanation. The Chicxulub crater is more than 180 km (110 mi) in diameter, making it the third largest confirmed impact crater.

Media caption The impact model illustrates the action in one half of the Chicxulub crater.

In 1980, Nobel Prize-winning physicist Luis Walter Alvarez and his geologist son Walter published a theory that a historic layer of iridium-rich clay was caused by a large asteroid colliding with Earth. The dinosaur-killing asteroid that hit the Earth around 66 million years ago probably generated a huge tsunami, according to new research. Asteroid Impact That Killed the Dinosaurs: New Evidence. Crater from asteroid that killed the dinosaurs reveals how broken rocks can flow like liquid Extremely strong vibration during large impacts, landslides and earthquakes allow rock to flow How Big Was the Asteroid That Killed the Dinosaurs: The Alvarez Hypothesis The Alvarez Theory linked high levels of iridium found in the K-Pg Bondary to asteroids. The asteroid which ended the age of dinosaurs struck Earth at the worst possible angle for the king of the lizards, a new study reveals. But if the doomsday asteroid’s approach had been shallower or steeper, there would have been another outcome, according to the first 3D computer simulation of the impact. Almost 66 million years ago, a huge asteroid slammed into the Earth and changed it forever. Scientists have discovered some shocking facts about the fallout from the meteor that killed off the dinosaurs. The trajectory of the asteroid thought to have killed the dinosaurs 66 million years ago was just right to cause maximum damage. The Chicxulub crater marks the point of contact made by an asteroid so enormous that it wiped out an entire planet’s worth of… Prof Paul Barrett, a dinosaur researcher at the Museum, explains what is thought to have happened the day the dinosaurs died.. The day the sky fell. Asteroid that killed the dinosaurs and nearly wiped out all life on Earth was good for bacteria and caused it to flourish, study claims. The asteroid that killed the dinosaurs hit 66 million years ago near what is now Mexico and was the size of a city - it killed 75 per cent of all plant and animal life Astronomers announced more proof today (Feb. 7) that the Chicxulub asteroid impact 65 million years ago led to mass extinction of dinosaurs. The burning cloud that erupted from the crater incinerated everything within hundreds of miles and triggered a “nuclear winter” that wiped out the dinosaurs.