火星的英文介绍.ppt

Mars Exploration.In 1962,the Soviet Union launched Mars 1 detector,flying 100 million kilometers away from earth and lost contact with the ground,its regarded as the beginning of the Mars exploration.In 1965,the United States,“mariner 4”flying near Mars,10000 kilometers from Mars taken 21 photos,found that there are many craters on Mars,and the atmosphere density is 1%of the earth.In 2002,the United States,“the Odyssey”Mars found that the Martian(火星人，火星的）surface and near surface may have a lot of frozen water。.Mars exploration has progressed from unmanned probe(探索，探查）to robot detection stage.Humans are step by step close to Mars.Mars-Big DiscoveryFound oneIn 2005,meteorite.Mars-Big DiscoveryFound twoLife，.Mars-Big DiscoveryFound three Water resource.Mars-Big DiscoveryFound fourAir.Mars-Big DiscoveryFound five Volcanic eruption.Thank you！By 熊帆 .