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Jun.2003:European Mars Express orbiterenters Mars orbit in December 2003.欧洲“火星快车号”宇宙飞船在2003年12月进入火星轨道。Mar.2001:U.S.Mars Oclvssey spacecraftarrives in orbit October 2001.Continues tooperate.美国“火星奥德赛号”宇宙飞船在2001年10月进入火星轨道。运转正常。Dec.1996:U.S.Mars Pathfinder lander andSoiourner rover Iand on Mars in July 1997.美国“火星探路者号”着陆器和“旅居者号”探测器1997年7月登陆火星。Nov.1996:U.S.Mars Global Surveyor ar-rives in orbit around Mars in Septetuber
Jun. 2003: European Mars Express orbiterenters Mars orbit in December 2003. The European “Mars Express” spacecraft entered the orbit of Mars in December 2003. Mar.2001: U.S.Mars Oclvssey spacecraftarrives in Orbit October 2001.Continues tooperate. The United States “Mars Odyssey” spacecraft entered the orbit of Mars in October 2001. operating normally. Dec.1996: U.S. Mars Pathfinder lander and Soiourer rover Iand on Mars in July 1997. The United States “Mars Pathfinder” Lander and “Residence” detector landed on Mars in July 1997. Nov.1996: U.S.Mars Global Surveyor ar-rives in orbit around Mars in Septetuber