NASA完成阿尔忒弥斯三号助推器组装 四台RS-25发动机就位 下一步发射台合练
佛罗里达州——美国航天局（NASA）10月13日发布的任务更新显示，阿尔忒弥斯三号（Artemis III）载人登月任务的运载火箭组装取得关键进展：两枚固体火箭助推器已在 Kennedy 航天中心飞行器组装大楼内完成堆叠，四台 RS-25 主发动机也已全部安装到太空发射系统（SLS）芯级上。
NASA 介绍，助推器前段的整流罩于9月30日完成安装，标志堆叠作业收官；这两枚助推器在发射最初几分钟将提供全箭75%以上的推力。接下来，芯级将与助推器合体成「短堆」构型，未来数月内转运至39B发射台进行低温推进剂加注合练；四名任务宇航员——Randy Bresnick、Frank Rubio、Andre Douglas 与欧洲航天局的 Luca Parmitano——也将参加发射日演练与紧急撤离演练。
NASA 局长 Jared Isaacman 10月18日发文表示，组装流程效率显著提升，工期缩短约50%。阿尔忒弥斯三号是 NASA 重返月球计划的关键一环，目标将宇航员送往月球南极附近区域。（GSM 据 NASA 公开信息报道）
NASA Completes Artemis III Booster Stacking, Installs Four RS-25 Engines
FLORIDA — NASA's October 13 mission update reports a key milestone for the Artemis III crewed lunar mission: both solid rocket boosters for the Space Launch System (SLS) have been fully stacked inside the Vehicle Assembly Building at Kennedy Space Center, and all four RS-25 main engines have been installed on the core stage.
NASA said the boosters' nose-cone assemblies were completed on September 30, finishing the stacking operation; the twin boosters provide more than 75 percent of the rocket's thrust during the first minutes of launch. Next, the core stage will be mated with the boosters in a "short stack" configuration and rolled out to Launch Pad 39B in the coming months for a cryogenic tanking rehearsal. The four Artemis III astronauts — Randy Bresnick, Frank Rubio, Andre Douglas and ESA's Luca Parmitano — will also take part in a launch-day rehearsal and emergency-exit walkdown.
NASA Administrator Jared Isaacman wrote on October 18 that the stacking process has become markedly more efficient, cutting the schedule by about 50 percent. Artemis III is the centerpiece of NASA's return-to-the-Moon program, targeting a crewed landing near the lunar south pole. (GSM, from NASA public information)
来源：GSM·美国（原文链接）
图片来源：图：阿尔忒弥斯三号的 SLS 助推器在 Kennedy 航天中心飞行器组装大楼内完成堆叠（2026年9月30日）。图片来源：NASA，公共领域。Photo: The Artemis III SLS boosters fully stacked inside the Vehicle Assembly Building at Kennedy Space Center (Sept. 30, 2026). Source: NASA, public domain.
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