Broken debris escaped from Earth's gravitational force, forming irregular orbits around the Sun, eventually finding their way to the planets and satellites of the Solar System. Mars was eventually covered with debris and, according to a study in 201
"If you were somewhere in North America about sixty-six million years ago looking at the sky, you would soon have figured out what looked like a star," said Douglas Preston on "The Dinosaur Death Day" . "If you observe an hour or two, the star would look brighter, though barely moving. This was because it was not a star, but an asteroid, and it was heading straight to Earth at about forty-five thousand miles an hour. Sixty hours later the asteroid struck. "The Day the Earth Blasted Glass" – Warning of Extinction
The air in the front was compressed and heavily heated, as the object pierced a hole in the atmosphere, generating a supersonic shock wave and evaporating in a blow, mixing with a vaporized earthquake, and forming a fiery jet that reached half the way to the moon before collapsing into a pillar of glowing dust. <br /> <br /> The asteroid hit a shallow sea where the Yucatan peninsula is today, ending the chalk period at the dawn of the palaeogen, the emergence of man "The asteroid itself was so great that even at the moment of impact its tip could still rise more than a mile above the height of a 747 Peter Branson cruise in the United States."
end of the world. "In almost instantaneous descent, he thickened the air under him so heavily that he became a few times hotter than the surface of the sun in a short time," striking the Earth with enough force to lift the mountain back to space speed. A few years ago, Preston reported, scientists at Los Alamos National Laboratory used the then one of the world's most powerful computers, the so-called Q Machine, to model the effects of impact, creating slow motion, a second sequential video with fake "Within two minutes of invasion of the Earth, the asteroid, which was at least six miles wide, carved a crater about eighteen miles deep and raised twenty-five trillion metric tons of debris into the atmosphere. Imagine spraying a pebble that falls into the lake water but on a planetary scale. When the earth's crust recovers, a peak higher than a peak. Everest rose for a moment. The released energy was more than that of billions of Hiroshima bombs, but the explosion did not look like anything like a nuclear explosion with its signature cloud of mushrooms. Instead, the initial blasting forms a "tail rooster" – a giant jet of molten material coming out of the atmosphere, part of which spreads over North America. Much of the material was several times hotter than the surface of the sun, and it burned everything within a thousand miles. In addition, an inverted cone of liquefied, overgrown rock rose outward like countless hot glasses, called tecty, and covered the Western Hemisphere.  Three-meter Problem
Scientists are still discussing many of the details of computer models and field studies of debris layers, knowledge of disappearances, fossils and microfossils, and many other clues, who writes Preston, but "the review of all is consistently grim. Dust and soot from the impact and fires prevented sunlight from reaching the surface of the planet for months. Photosynthesis almost stopped, killing most of the plant life, extinguishing the phytoplankton in the oceans, and causing a sharp drop in the amount of oxygen in the atmosphere. Once the fires have ceased, the Earth is plunging into a period of cold, perhaps even deep freezing. The two major food chains on Earth, at sea and on land, have collapsed. About seventy-five percent of all species have disappeared. More than 99.9999% of all living organisms on the Earth have died and the carbon cycle has stopped. "
The Earth itself has become toxic, blowing away limestone, releasing powerful greenhouse gases into the atmosphere: trillion tons of carbon dioxide, ten billion tons of methane and one billion tons of carbon monoxide. The influence also vaporizes the anhydrate scale, increasing ten trillion tons of sulfur compounds. combined with water to form sulfuric acid, which then fell as acid rain.
One of the last puzzles of paleontology is the so-called "three-dimensional problem" – in one and a half centuries of zealous quests, almost no remains of dinosaurs were found in the three-meter-thick layers, or about nine feet below the boundary of the CT, between the Cretaceous period and the period of the tertiary period. (The Terrier is redefined as a Paleogene), a depth that is many thousands of years. Therefore, Preston reports, numerous paleontologists claim that dinosaurs are about to disappear long before the asteroid strikes, probably due to volcanic eruptions and climate change. Other scientists have objected to the fact that a three-meter problem only reflects how difficult it is to find fossils. Sooner or later, they claim, a scientist will find much closer to the moment of destruction.
Buried within the boundary of CT are the answers to our questions about one of the most significant events in the life of the planet. If one views the Earth as a living organism, as do many biologists, Preston writes, he could have been said to have been shot by a bullet and nearly died. Deciphering what happened on the day of destruction is crucial not only for solving the three-dimensional problem but also for explaining our own genesis as a species.
Enter a Robert Depalma: In March 2019, the galaxy published "Earth Day, Refracted Glass" – A Warning of Extinction that describes the horror of the blow. The beginning of the end began with a violent shake that lifted giant waves into the waters of the Inner Sea in the present North Dakota. Then small glass beads began to fall like birds from the sky. The rain of glass was so heavy that it could burn much of the vegetation on land. In the water, the fish tried to breathe when their beads blocked the gills, says paleontologist Robert Depalma for the field of killing found shortly after the asteroid impact, which eventually led to the disappearance of all terrestrial dinosaurs at the end of the chalk. the so-called border of CT, which has destroyed 75% of life.
"This is the first mass death, made up of large organisms found by somebody connected with the boundary of the KT," says Palma, a Palma-de-curator of Palma. Museum of Natural History of the Beach. "You can not find any such collection in any other boundary of the Earth's KT, consisting of a large number of species representing different ages of organisms and different stages of life, all of which died at the same time on the same day . "
The DePalma discovery is in the Hell Creek geological formation, which extends to parts of North Dakota, South Dakota, Montana and Wyoming – some of the oldest dinosaur beds in the world. During the impact, Hell Creek's landscape consisted of steam, subtropical lowlands and floodplains along the coast of the Inner Sea. Earth has been filled with life, and conditions are excellent for fossils, with seasonal floods and winding rivers that quickly bury dead animals and plants.
DePalma lays the place of Tanis, after the ancient city of Egypt, which is featured in the 1981 film "Raiders of the Lost Ark" as a resting place for the Ark of the Covenant. In true Tanis, archaeologists have found inscriptions in three writing systems, which, like the Rosetta stone, were crucial for the translation of an ancient Egyptian. Life Rehabilitation
The cosmic impact, strong enough to destroy all life on the Earth's surface, will raise large amounts of rock in orbit around the Sun. Most of these pieces would go back to our wounded and battered planet, potentially returning their lives back, says Stein Sigursson, a professor in the Department of Astronomy and Astrophysics at the University of Pennsylvania. "This is particularly calming." Sighssson said last month at the breakthrough conference at the University of California at Berkeley.
"Cosmic Refugees" – Extinction at Dinosaur Level
"If you have a sterilizing effect – if you have a dinosaur killer, something that will explode a whole planet – there is a high likelihood of some biotites being thrown out to return to the planet, to hope gently, fast enough to restore the planet, "he added. The existence of such "space havens" is supported by computer simulations, which Sigursson and his colleagues track the trajectories of rocks destroyed by the Earth and the other rocky planets in orbit around the sun.
Their existence, before the asteroid hit, the mammals threw themselves under the feet of the dinosaurs: "But when the dinosaurs were gone, he released them," says Depalma. In the next epoch, mammals undergo an explosive adaptation of radiation that observes Preston, evolving into a dazzling variety of shapes, from bats to giant titanos, from horses to whales, from fearsome creodonts to large primates with hands that can grasp and Understand
"We can trace our origins back to this event," said Depalma. "Being there to see that it is connected to that day is something special. This is the last day of the Cretaceous. When you go one layer up – the next day – it's the Paleocene, that's the age of mammals, that's our age.
In a text image, Dinosaur Day dies thanks to BBC Bancroft