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人类会把外太空变成殖民地吗

作者:佚名    文章来源:本站原创    更新时间:2019/2/16

Will we ever colonize outer space? 人类会把外太空变成殖民地吗?
  “That depends on the definition of ‘colonize.’ If landing robots qualifies, then we’ve already done it. If it means sending microbes from Earth and having them persist and maybe grow, then, unfortunately, it’s not unlikely that we’ve done that as well—possibly on Mars with the Phoenix6) spacecraft and almost certainly inside the Curiosity rover7).
  If it means having humans live elsewhere for a longer period of time, but not reproduce, then that’s something that might happen within the next 50 years or so. But if the idea is to construct a self-sustaining environment where humans can persist indefinitely with only modest help from Earth, then I’d say this is very far in the future, if it’s possible at all. We currently have a very inadequate understanding of how to build closed ecosystems that are robust to perturbation by introduced organisms or nonbiological events (Biosphere 28), for example), and I suspect that the contained ecosystem problem will turn out to be much more challenging than the vast majority of space colonization advocates realize. There are a wide range of technical problems to solve, another being air handling. We haven’t bothered to colonize areas underwater on Earth yet. It’s far more challenging to colonize a place where there’s hardly any atmosphere at all.”
  —Catharine A. Conley, NASA planetary protection officer

 

“这要看如何定义‘殖民’了。如果机器人登陆算的话,那么我们已经做到了。如果这意味着把地球上的微生物送上去,让其存活并生长,那么,很不幸,我们很有可能也做到了——‘凤凰号’飞船登陆火星时或许就实现过,而在‘好奇号’探测器内几乎肯定实现了。
  如果建立殖民地指的是人类历久在外星居住,但不繁衍后代,那么大约在未来50年内就可能实现。但如果指的是建造一个自给自足的环境,让人类只需地球适度的支持就能在其中无限存活下去,那么我认为就算可能,也是在十分遥远的未来。目前,我们不知道如何建立一个封闭的生态系统,使其能蒙受由于微生物引入或非生物因素(如生物圈2号)引发的微小变化。我认为其中的生态系统问题远远比绝大多数太空殖民提倡者所意识到的更具挑战性。有许多不同的技术问题要解决,另一个问题就是空气处理。我们还未在地球的水下区域建立殖民地,而要在一个几乎没有空气的地方建立殖民地,挑战性则更大。”
  ——美国国家航空航天局行星保护官员凯瑟琳·A·康利

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人类会把外太空变成殖民地吗

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