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7分钟,从时速20000公里到安全着陆,毅力号如何登陆火星?
如果太阳系的行星中除了地球外还可能孕育生命,那么火星无疑是最有希望的候选者。 科学家认为,火星曾经拥有磁场、适宜的大气环境以及液态水,而这些条件极有可能孕育生命。然而,仅凭猜测无法得出结论,因此人类需要借助探测器对火星进行深入探索,寻找生命存在的证据 ...
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