2013-05-29 チャレンジャー号爆発事故 動画(いろいろ) Space Shuttle Challenger Explosion LIVE TV http://www.youtube.com/results?search_query=Challenger+Space+Shuttle+Crash&oq=Challenger+Space+Shuttle+Crash&gs_l=youtube.12..0i19.8044.8044.0.9408.3.1.0.2.2.0.86.86.1.1.0...0.0...1ac.2.11.youtube.Egou_8-FjKI