gaping funnel in the Arizona desert marks the spot where the meteorite crashed into the Earth.Meteorite crater is located right next to a major highway between Flagstaff and Winslow.Many thousands of years ago, a bright band drew the sky over northern Arizona.Fireball, flying at a speed of approximately 19 km.in the second, declining more and finally hit the ground with a terrible explosion, took to the air, millions of tons of rock and leaving Meteor Crater.In its destructive power of the explosion a thousand times superior to the explosion of the atomic bomb dropped on Hiroshima.
Crater is a huge cup-shaped crater in 1220 m. In diameter and 180 m. In depth, whose edge is raised above the flat plain of 46 m. The edges of the crater, rising above the plain, creating the illusion of the volcanic nature of the phenomenon and allow to notice him for many milSpory aboutlargest meteorite, which left it still does not subside, but the latest estimates suggest that it was a huge ball of iron and nickel, rea
Fortunately, these huge missiles from outer space is not so often fall to Earth.However, every day in the earth's atmosphere penetrates, it is estimated that approximately 50 tons of meteoric dust.For the most part it is fine particles are burned, failing to reach the Earth because of the heat generated by friction when the meteorite enters into the upper atmosphere.
Since the meteor particles are usually destroyed long before they reach the Earth's surface, they are rare.Those who are in the majority contain iron, it is better able to withstand the heat generated during the rapid fall.The largest in the world
piece meteorite - Goba - was found in 1930 near Grootfontein, Namibia.It weighs about 60 tons, although the size of the entire 2h2h1 m. The second largest meteorite was found on Cape York in West Greenland.For many years he served as a local tribe of Inuit source of iron for their weapons before 1897 there was an American explorer Robert E. Peary, who took him to the American Museum of Natural History in New York.A large number of meteorites have been found in Antarctica - some of them, according to the assumptions of scientists, came to us with the Moon and Mars.
rare meteorites fall to the ground, but a few cases, still recorded.In 1908 over the Tunguska taiga, about 10 km.from the surface of the Earth, an explosion occurred.Its sound was heard nearly 1,000 kilometers, and the trees fell on the area of about 2,000 square kilometersThis colossal explosion could be caused by an asteroid or comet fragment.
Some scholars suggest that it was a meteorite caused a mass death of the dinosaurs that occurred 65 million years ago.According to this theory, a huge space chip cut through the Earth's atmosphere and reach the surface, left a deep crater 50 km, 200 km in diameter.on the ocean floor.Volcanic products and hot gases have joined the millions of tons of dust and rocks, thrown into the air.The dust rose into the upper atmosphere and blocked the path of the life-giving energy of the sun, causing a violation of plant development and the reduction of the amount of food that led to the death of many animals, including the dinosaurs.A large crater was found recently near the coast of Mexico, perhaps to confirm this theory.