 Nyora kupfuurira kweiyi ndima - Mushure mokurasikirwa ne Space Shuttle Columbia, Columbia Accident Investigation Board yakatsanangura SUBSAFE sepurogiramu dzakabudirira dzokuchengetedza uye miitiro inogona kuva mienzaniso yeNASA. Zvichitevera kurudziro iyi, kuchinjana kwakawanda nemisangano zvakaitwa pakati pevashandi vengarava veSUBSAFE neNASA. 