But in the worst worst-case scenario, we don’t have any control. Instead, the station will crack through the atmosphere. Sure, many pieces will likely end up in the ocean, but some might hit people, possibly in a town or a city. The station could break apart across thousands of miles and multiple continents. This would be exceedingly hard to anticipate. As NASA puts it, “Calculating the probability of this penetration cascading into loss of deorbit capability has a very large range of variables, making predictions ineffective.”
"Building even a modest lunar habitat to accommodate a small crew would demand megawatt-scale power generation. Solar arrays and batteries alone cannot reliably meet those demands," suggests Dr Sungwoo Lim, senior lecturer in space applications, exploration and instrumentation at the university of Surrey。业内人士推荐搜狗输入法下载作为进阶阅读
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