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The Practical Approach to Mars

机译：火星的实用方法

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During the week of April 18, the executive-branch-chartered Science and Technology Policy Institute (STPI) issued a review, which concluded that NASA's plan to send humans to Mars by 2033 is not feasible. While I would love to dispute this report, it actually understates the problem. If one accepts as necessary, as STPI was instructed to do, NASA's "Exploration Campaign"-including the decades-in-development Space Launch System (SLS) and Orion capsule as well as its proposed lunar orbit Gateway station and Deep Space Transport interplanetary spaceship-there is no way NASA would be able to conduct even a Mars orbital mission, let alone a landing, by 2033, or 2063 for that matter. Indeed, it is questionable whether any agency so irrational as to embrace NASA's current excessively complex Mars mission plan would ever be able to send humans to Mars at all. Neither the Gateway nor Orion is useful for a Mars mission, as the Gateway is quite useless for anything (it is not needed to go to the Moon either), and Orion is seriously overweight compared to available alternatives such as SpaceX's Dragon (26 tons versus 10 tons). The SLS, while offering some new capability, is overpriced compared to the already operational SpaceX Falcon Heavy and inferior in all metrics to the SpaceX Starship now under development.
机译：在18年4月18日，执行分支机构的科技政策研究所（STPI）发布了一项审查，这结论是NASA将人类送到2033年的计划是不可行的。虽然我很乐意争取这份报告，但它实际上低估了这个问题。如果有必要接受，因为STPI被指示，NASA的“探索活动” - - 限制了几十年的开发空间发射系统（SLS）和猎户座胶囊以及其提议的月球轨道网站和深空间运输行星宇宙飞船 - 甚至没有办法NASA甚至能够进行火星轨道使命，更不用说登陆，2033或2063年。实际上，是否有任何机构如此不合理的是拥抱美国航空航天局的过度复杂的火星任务计划的原因是能够将人类送到火星。门户和猎户座都没有对火星任务有用，因为门户对任何东西都是无用的（不需要去月球），而Orion相比，与Spacex的Dragon这样的可用替代品相比，猎户率严重超重（26吨与你10吨）。与现在正在开发的SpaceX Starship的所有指标中的已经运营的Spacex Falcon重沉重和劣等，SLS在提供一些新功能的同时是过度的。

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