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  1. 2025/01/14 17:52:47 Defense News - Breaking International Defense News
  2. 2025/01/14 15:57:23 Optics.org - The Business of Photonics
  3. 2025/01/13 05:02:55 SpaceNews.com | Civil Space, Military Space, Commercial Space, Satellite Communications.
  4. 2025/01/11 05:34:27 Aviation, Defense and Space News, Jobs, Conferences by AVIATION WEEK
  5. 2025/01/10 03:02:13 sorae.jp : 宇宙(そら)へのポータルサイト
  6. 2025/01/07 22:46:06 宇宙開発を考える宇宙政策シンクタンク_宙の会
  7. 2024/02/29 21:47:18 space library
  8. 2022/04/02 14:08:06 松浦晋也のL/D
  9. 2021/09/19 06:33:29 宇宙開発戦略本部
  10. 2014/05/06 20:11:43 有人宇宙港をめぐる冒険