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许多太空爱好者都知道,人类将在20年之内登陆火星。当然,这样的说法在过去半个世纪里一直在被重复着。从1950年到2000年的半个世纪里,美国宇航局(NASA)和许多独立团体提出了1 000多种详细的载人火星探索计划,然而其中没有一个真正得到实施。但至少在纸面上,火星仍然被作为美国宇航局的一项终极目标。他们最新的“好奇号”探测器从某种程度上说,就是载人火星登陆的探路先锋。2012年8月5日,当“好奇号”探测器成功在火星着陆后,美国宇航局局长查尔斯·博尔登说:“今天,‘好奇号’探测器的车轮已经开始为人类最终踏足火星开辟道路。”尽管如此,事实上火星并不存在于美国宇航局的目标名单上。除了定于2013年发射的“火星大气与挥发物演化”(MAVEN)探测器之外,近期美国宇航局并没有为火星这颗红色星球安排其他具体的探索计划。正如美国太空历史学家戴维·波尔特里说:“毫无疑问,现在没有人真的想把人类送上火星。”
Many space lovers are aware that humans will land on Mars within 20 years. Of course, this statement has been repeated for the past half century. Half a century from 1950 to 2000, NASA and many independent groups proposed more than 1,000 detailed manned Mars exploration programs, none of which were actually implemented. But at least on paper, Mars remains the ultimate goal of NASA. Their latest “curiosity” probe is, to some extent, a pioneer of manned rover landings. On August 5, 2012, when “Curiosity” was successfully landed on Mars, NASA Charles Bolden said: “Today, the wheels of the Curiosity Detector have begun to end up for humans Set foot on Mars. ”In spite of this, Mars does not actually exist on NASA’s list of targets. In addition to the MAVEN, which is due to launch in 2013, NASA has not scheduled yet another specific exploration program for Mars on the red planet. As David Pollry, the American space historian, said: “There is no doubt that no one really wants to send humans to Mars right now.” "