Scientists first identified which of meteorites from the planet (Figure).

Key words: meteorite <P> </ P> <P> <CENTER> </ CENTER> <P> </ P> <P align=center> about 4 kg 2008TC3 debris </ P> <P align=center> < ./ P> <P> World Scientific reports [tech.]: Astronomers flew in last year's Earth asteroid discovered it ten hours, and left it in the earth to collect the wreckage. .This is the first human to determine what specific meteorites from asteroids. .</ P> <P> "Nature" magazine article reported that 25 of the event. .</ P> <P> </ P> <P> intruder </ P> <P> October 6 last year, an amateur astronomer in Arizona discovered an asteroid. .He then passed the coordinates of the Minor Planet Center in Massachusetts. .</ P> <P> asteroid Tim Spahr, director, recalled that the computer system refused to accept more data unexpectedly, forcing him to do it yourself. .</ P> <P> "When I look at track and manual calculation, the data clearly indicated that it will hit the Earth," Spahr said. .</ P> <P> he immediately notified the U.S. Jet Propulsion Laboratory 史蒂夫切斯利. .Chesley is the United States NASA Near-Earth Object Program Office members. .He quickly re-calculated, the result is displayed on the computer screen one hundred percent chance of a collision, this time to reach the Earth from asteroids time less than 13 hours. .</ P> <P> "I first saw the computer screen, words pop out of one hundred percent chance of collision. Needless to say, such things just make you sit up a bit in his chair," Chesley said. .</ P> <P> </ P> <P> fall in the desert </ P> <P> Fengyun asteroid named 2008TC3 37 km away from the disintegration of the ground, when the flight speed of about 12 km per second ., the release of 1000-2000 tons TNT equivalent of explosive energy generated. .</ P> <P> asteroid debris falling into the Nubian Desert in northern Sudan. .Locals reported seeing a fireball. .A KLM Royal Dutch Airlines pilot was flying at 1400 km away from Johannesburg to Amsterdam, he said he saw on the horizon a strong flash. .</ P> <P> scientists are beginning to think that the falling debris will burn. .But the United States search for extraterrestrial civilizations Institute astronomer Peter Castro decided to try his luck Nice extension. .</ P> <P> "If we can find something, then it would be a big thing, so you must try. This is indeed a big gamble," he said. .</ P> <P> Fidel early December flights to Nice extension of the Sudan, and Khartoum University 穆阿维哈米 Desha Dade professor and his dozens of students into the Nubian desert. .They eventually found the wreckage of about 4 kg 2008TC3. .</ P> <P> </ p>.