The dinosaurs were wiped out by a massive asteroid impact on Earth. For seconds-minutes-hours, a team of scientists has created the details of that event.
Once upon a time, giant dinosaurs roamed the earth, but today only their bones are found. As a result of a terrible event, they all died about 66 million years ago.
Researchers believe that the explosion and environmental changes caused by the impact of a large asteroid on Earth are the reason for the extinction of dinosaurs.
The era of mammals began on Earth, after the extinction of dinosaurs.
Scientists say the asteroid was 12 kilometers wide. It landed on the Yucatan Peninsula off the coast of Mexico.
A team of researchers from the University of Texas examined the rock structure, finding the topography of the massive crater formed in the area and signs of an asteroid impact.
It hit the Earth so hard that researchers say it formed a crater or crater 200 kilometers wide and a few kilometers deep. The edges of the hole then collapsed inwards.
This caused a terrible tsunami in the sea. A giant wave was created.
The bulk of this hole is now at the bottom of the ocean - a 600-meter-thick layer of silt. The part on the ground is covered with limestone.
Dinosaurs roam in the artist's imagination
But one-third of that seabed was made of gypsum - one of the elements being sulfur.
That sulfur may have merged with the ocean water in a traumatic explosion of that asteroid and spread into the sky.
This dramatically makes the weather extremely cold and makes it difficult for any animal or plant to survive.
One hundred gigatons (one gigaton means 100 million tons) of sulfur are released into the atmosphere, bringing the temperature down to at least 25 degrees below normal, says Sean Gulik, a professor at the University of Texas Urbana-Champaign.
Dinosaur skull
He added that the conservatives believed that 325 gigatonnes of sulfur had been released into the Earth's atmosphere.
Mammals could survive in such cold weather, but dinosaurs could not.
Among the theories that explain its possible causes, it is popular among scientists - why dinosaurs suddenly disappeared from the earth. There are several arguments in support of this theory in Professor Gulik's research.
