The geological survey was done over 100 years ago shows. World craters about 120 wells, which is less compared to the moon. Mercury or Mars This is because the water And atmospheric phenomena, earthquakes that could drown out signs of craters that date, the survey has shown that. Canada is a country that has the most impact craters like holes in Sudbury, Ontario, with hole 145 kilometers wide and up to 1,800 million last year, the normal time a meteorite crashed into the earth. The heat generated by friction with the atmosphere to burn some of the meteorite until the meat is lost , then the rest will fall into Earth. Total weight of the meteorite is the largest. Hoba West meteorite that crashed in Namibia, which measures 2.75x2.75x1 meters and weigh up to 60 tons, 25,000 years ago, when there was a large chunk of meteorite that fell in Winslow, Arizona, causing a hole 1,200 meters deep and 170 meters. knowing the size of the hole scientists know. Then the meteorite with a diameter of 60 meters long and weigh 1 million tons of earth crashed at a speed of 15 km / s. If it goes longer than that of the past 65 million years ago. It has a length of 10 km diameter meteorite crashed into the earth at the Yucatan Peninsula in Mexico caused a deep hole 20 kilometers wide and 100 kilometers violence resulting from clashes that time. Cause volcanic eruptions, earthquakes, forest fires burning and the world is volcanic dust covered the sky for months until the plants do not get the sun fell and dinosaurs (some of) the herbivorous fallen by as extinct eventually. experts have a few people. A massive meteor near-Earth orbit is difficult. Like a big village, but there are not many guards. Requires enormous budget Nowadays, there are only three organizations in the United States, Hawaii and Chile, if nothing strange lump. Jump straight to Earth Helped to send out a warning. Like radar, forward movement of the enemy. The meteorite that fell in Russia Pack size is not very big and so fast nobody tending to catch up.
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