MYSTERY MISSION! US military's X-37B space plane lands, ending record-breaking mission
【謎の無人宇宙機】米空軍の秘密のミニ・シャトル「X-37B」の陸上輸送【再び宇宙へ】
X-37B - あそこで何をしているの?
アメリカの謎のスペースシャトル:X-37B
US Secret X-37B Mini Space Shuttle Launch by Space Force
Air Force X-37B mini-shuttle lands at Kennedy Space Center
Sonic Boom caused by the Boeing-built X-37B Orbital Test Vehicle returning to Earth
Lockheed's LS-200 Star Clipper Spaceplane a Space Shuttle alternative
USAF X-37B Mini Shuttle
X-37b Space Plane: Pentagon Experiment For Unmanned Spaceship Spies?
Secret Space Shuttle X-37B (5-26-10)
米軍の「謎の無人宇宙機」X-37Bが2年ぶりに地球へ帰還【最も謎な飛行体】
USA X-37B: The Mini Space Shuttle That's Changing Space Exploration
Secret X-37B Shuttle Returns to Earth (Raw Video)
US X-37B Spaceplane lands (OTV-4)
Pentagon's Mini Shuttle Returns From Secret Space Mission
Launch of Mysterious X-37B Mini-Shuttle
US Air Force Boeing X-37B OTV mini-shuttle lands - Dec 2010
The mysterious X-37B: What's the Air Force's mini-shuttle all about
Launch of Atlas-V Rocket Carrying OTV-2/X-37B 'Mini-Space Shuttle' Space Plane, 05/03/2011