Isaacman also said the agency would halt work to develop a more powerful version of the SLS rocket's upper stage, known as the Exploration Upper Stage, or EUS. Instead, NASA will go forward with a "standardized," less powerful stage but one that will minimize major changes between flights and utilize the same launch gantry.
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「像鬼一樣工作」：台灣外籍移工為何陷入「強迫勞動」處境。业内人士推荐91视频作为进阶阅读
Nature staff discuss some of the week’s top science news.