"Comet Impact" Today I played for observation scientists.

<P Align=center> "Comet Impact" diagram </ P> <P> "shell" has been "collide" "Fireworks" is about to bloom </ P> <P> newspaper Pasadena (California) 7 .3 Xinhua Li Wenyun report: NASA's "Deep Impact" spacecraft in the western United States for 2 evening 11:00 7 points successfully released its impactor load, the first man to implement the "impact comet" Space exploration .smooth entry into the 24-hour countdown. .If anything, the impactor will be U.S. Eastern Time at 1:52 on July 4 (Beijing time at 1:52 p.m. on the 4th) hit the comet Tempel 1. .The impact site about 130 million km from Earth. .</ P> <P> "Deep Impact" Grammar Project Manager Jet Propulsion Laboratory in the United States on the waiting press information center said that the impactor and the "Deep Impact" mother ship of the separation of very stable and smooth, after the separation, the ground .Scientists detected the "Deep Impact" system all the components, the results show that the normal functioning of the whole system. .Ground command center has received "Deep Impact" impactor back number and the image data. .</ P> <P> According to reports, "Deep Impact" spacecraft laden impactor has been flying for 171 days in space, when the impactor from the mother ship, it is about to hit the target from the comet Tempel 1 about 880,000 km .. .The washing machine-sized impactor is battery-powered smart vehicle, in crashed into comet Tempel 1, it can automatically navigate and carry the camera with their own observations nucleus. .As planned, the impactor will "collide" 24 hours after the "hit" Tempel 1's nucleus, leaving the surface of the nucleus of a football field-sized pit. .By then, the comet impact site scattered snow and dust, the scene is like fireworks in space. .</ P> <P> July 3, Nanjing newspaper reporter Shen Lin reports: Nanjing Purple Mountain Observatory, Chinese Academy of Sciences briefing today, the "comet impact," the man of heaven, of the astronomy community to give a high degree of attention. .The evening of July 2, Purple Mountain Observatory, Chinese Academy of Sciences, scientists Xuyi stations, using 40 cm diameter telescope captured a more clear pictures of the comet Tempel 1. .</ P> <P> king, according to researchers thought the Purple Mountain Observatory, during the impact at least 20 countries, the Observatory into more than 60 observations, the phenomenon of astronomical observations of the research institutions Purple Mountain Observatory, Chinese Academy of Sciences and the main .Qingdao astronomical observatory. ."Comet Impact" meaning there are three main research areas: First, study the origin of the Earth and the solar system. .Comets are frozen material, holds the birth of the solar system is very valuable information, the impact is to get inside the comet, the internal composition of matter from the comet to understand the solar system's original state; the second is to reveal the origin of Earth and life in the universe is important. .Research found that comets and asteroids in the past have brought water to Earth, ice and organic compounds, and organic matter in the right conditions, may evolve into life, the study will help reveal the comet mystery of the origin of life; third is to avoid .accumulate experience alien hit the Earth. .1994 "Wood comet collision" caused by the human concern for the earth comet collision, the impact can gain experience, if the comet after the collision of the Earth there may be, human beings can use the spacecraft to trigger explosive devices, thus changing the comet's orbit .to avoid damaging the planet. .</ P> <P> It was explained that the impact will occur in Beijing on the 4th day, so my amateur astronomers have witnessed the moment of impact is difficult to picture, be patient wait for 6 and a half hours later, the comet began to enter the field of vision of the night sky .then If telescope at the target, the forecast will be in the position of the comet observed a group of vaguely pan slightly bright "little balls of fluff." .</ P> </ p>.