第一项始终是图钉的来源。总体可信度是各份资料对上方所用开始和结束时间支持程度的加权平均;资料每比最新的一份旧 180 天,权重减半。
Happened as dated, per arstechnica.com: "…ty of adding crew members to the maiden launch of the Space Launch System (SLS) rocket. This seemed…"
The Register's November 9, 2017 report confirms NASA reconfirmed a December 2019 SLS launch target, closely matching the pin's stored date of November 30, 2019, though the piece's own headline hints at schedule uncertainty.
Spaceflight Now's April 28, 2017 report confirms NASA acknowledged the SLS's maiden flight would slip from November 2018 into 2019, an early prediction that predates but supports the pin's stored late-2019 date.
有遗漏或错误吗?用你自己的话说明:能佐证此图钉的链接、不同的开始或结束日期及理由,或缺失、有误的信息。AI 会对照此图钉的来源进行核实,搜索更好的来源,并添加任何支持你说法的页面。图钉自身的来源仍然最重要。