NASA愚人节发射绕月任务，不是玩笑NASA愚人节发射绕月任务，不是玩笑 \u003cdiv class=\"rich_media_content\"\u003e\u003c!--NO_AD_ERROR_2--\u003e\u003cp\u003eIT之家 3 月 4 日消息，科技媒体 Ars Technica 今天（3 月 4 日）发布博文，报道称美国宇航局（NASA）已修复技术故障，\u003cstrong\u003e目标 4 月 1 日“愚人节”发射“\u003c!--VERTICAL_CARD_BEGIN_0--\u003e阿尔忒弥斯二号\u003c!--VERTICAL_CARD_END_0--\u003e”（Artemis II）载人绕月任务。\u003c/strong\u003e\u003c!--NO_AD_0--\u003e\u003c!--EOP_0--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_0--\u003e\u003cp\u003e执行“阿尔忒弥斯二号”载人绕月任务的“\u003c!--VERTICAL_CARD_BEGIN_1--\u003e太空发射系统\u003c!--VERTICAL_CARD_END_1--\u003e”（SLS）火箭于 2 月 21 日顺利通过关键的燃料加注测试，克服了困扰已久的液氢泄漏问题，但次日发现无法向火箭的\u003c!--VERTICAL_CARD_BEGIN_2--\u003e上面级\u003c!--VERTICAL_CARD_END_2--\u003e（upper stage）输送氦气。\u003c!--NO_AD_1--\u003e\u003c!--EOP_1--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_1--\u003e\u003cp\u003eIT之家注：上面级是多级火箭的最顶端部分，负责在基础级（或核心级）工作结束后，进一步加速有效载荷并将其送入预定轨道。\u003c!--NO_AD_2--\u003e\u003c!--EOP_2--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_2--\u003e\u003cp\u003e由于连接上面级的\u003c!--VERTICAL_CARD_BEGIN_3--\u003e脐带线\u003c!--VERTICAL_CARD_END_3--\u003e位于火箭高处，无法像核心级连接处那样直接在发射塔上进行维修，只能进入肯尼迪航天中心巨大的\u003c!--VERTICAL_CARD_BEGIN_4--\u003e车辆装配大楼\u003c!--VERTICAL_CARD_END_4--\u003e（VAB）内部进行操作。为此，任务管理者果断决定将火箭运回装配大楼排查故障。\u003c/p\u003e\u003cp data-exeditor-arbitrary-box=\"image-box\" style=\"text-align: center\"\u003e\u003cspan data-widget=\"image\" style=\"display: inline-block; max-width: 100%\"\u003e\u003c!--IMG_0--\u003e\u003cspan style=\"color: rgb(153, 153, 153); display: block; font-size: 12px; line-height: 18px; overflow-wrap: break-word; text-align: center\"\u003e\u003c!--NO_READ_BEGIN--\u003e图源：美国宇航局\u003c!--NO_READ_END--\u003e\u003c/span\u003e\u003c/span\u003e\u003c/p\u003e\u003cp\u003e火箭于 2 月 25 日返回装配大楼，工程师仅用 1 周时间便锁定了故障源头。检查结果显示，连接地面系统与火箭的\u003c!--VERTICAL_CARD_BEGIN_5--\u003e快速断开装置\u003c!--VERTICAL_CARD_END_5--\u003e内部，一个密封件发生移位并堵塞了氦气通路。\u003c!--NO_AD_3--\u003e\u003c!--EOP_3--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_3--\u003e\u003cp\u003e美国宇航局表示，团队已移除该装置并重新组装系统，正通过低流量氦气测试来验证修复效果，确保彻底解决该问题。\u003c/p\u003e\u003cp\u003e工程师们目前正在深入分析导致密封件移位的具体原因，制定预防措施，避免类似问题在未来的发射准备中再次发生。\u003c/p\u003e\u003cp\u003e随着修复工作的推进，美国宇航局预计将在几周后把火箭重新运回发射台，为 4 月 1 日的发射窗口做最终准备，这一确切的日期也打破了外界关于“愚人节玩笑”的猜测。\u003c!--NO_AD_4--\u003e\u003c!--EOP_4--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_4--\u003e\u003cdiv powered-by=\"qqnews_ex-editor\"\u003e\u003c/div\u003e\u003cstyle\u003e.rich_media_content{--news-tabel-th-night-color: #444444;--news-font-day-color: #333;--news-font-night-color: #d9d9d9;--news-bottom-distance: 22px}.rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}.rich_media_content{color:var(--news-font-day-color);font-size:18px}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]):not(.qn-editor-copy){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content{color:var(--news-font-night-color)}}.data_color_scheme_dark .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.data_color_scheme_dark .rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}.data_color_scheme_dark .rich_media_content{color:var(--news-font-night-color)}.data_color_scheme_dark .rich_media_content{font-size:18px}.rich_media_content p[data-exeditor-arbitrary-box=image-box]{margin-bottom:11px}.rich_media_content\u003ediv:not(.qnt-video),.rich_media_content\u003esection{margin-bottom:var(--news-bottom-distance)}.rich_media_content hr{margin-bottom:var(--news-bottom-distance)}.rich_media_content .link_list{margin:0;margin-top:20px;min-height:0!important}.rich_media_content blockquote{background:#f9f9f9;border-left:6px solid #ccc;margin:1.5em 10px;padding:.5em 10px}.rich_media_content blockquote p{margin-bottom:0!important}.data_color_scheme_dark .rich_media_content blockquote{background:#323232}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content blockquote{background:#323232}}.rich_media_content ol[data-ex-list]{--ol-start: 1;--ol-list-style-type: decimal;list-style-type:none;counter-reset:olCounter calc(var(--ol-start,1) - 1);position:relative}.rich_media_content ol[data-ex-list]\u003eli\u003e:first-child::before{content:counter(olCounter,var(--ol-list-style-type)) '. 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