1997年7月4日,美国“火星探路者”号探测经过长达7个月的漫漫旅途,终于成功地登上了令全人类魂牵梦萦的红色星球——火星。这是继1976年夏天两艘“海盗号”宇宙飞船首次登上火星以来,人类又一次成功地造访这一地球的近邻。 2001年10月下旬,又一火星探测器“奥德赛”抵达火星,并开始缓缓下降,于2002年1月进入了火星上空400千米高的极地轨道,开始进行为期两年半的火星 On July 4, 1997, the United States “Mars Pathfinder” probed the long journey of 7 months. It finally succeeded in ascending to the Red Planet, Mars, a nightmare for all mankind. This is the second time that humans have successfully visited this Earth since the first two Mars Spacecrafts arrived on Mars in the summer of 1976. In late October 2001, another Mars Odyssey Odyssey arrived at Mars and began to slowly decline. In January 2002, it entered the 400-kilometer-high polar orbit above Mars and began a two-and-a-half-year period of Mars.