https://blog.wongcw.com/2020/09/07/%e8%a8%88%e5%8a%83%e7%94%a8%e6%96%bc%e9%98%bf%e7%88%be%e5%bf%92%e5%bd%8c%e6%96%af%e6%9c%88%e7%90%83%e4%bb%bb%e5%8b%99%e7%9a%84sls%e7%81%ab%e7%ae%ad%e6%88%90%e6%9c%ac%e7%88%86%e8%a1%a8/
計劃用於阿爾忒彌斯月球任務的SLS火箭成本爆表