NASA Chief Bolden Speaks At A House Science Committee...

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Gen. William Shelton, head of the U.S. Air Force Space Command,... Foto di attualitàAstronomia,Bestof,Composizione orizzontale,Deposizione legale,Evento catastrofico,Legge,Mezzo busto,Missione nello spazio,Pianificazione di Emergenza,Politica,Preparazione,Rayburn House Office Building,Scienza e Tecnologia,Stati Uniti d'America,Tematiche,Topix,Washington DCPhotographer Collection: Getty Images News 2013 Getty ImagesWASHINGTON, DC - MARCH 19: Gen. William Shelton, head of the U.S. Air Force Space Command, prepares to testify before the House Science, Space and Technology Committee in the Rayburn House Office Building on Capitol Hill March 19, 2013 in Washington, DC. The committee asked government and military experts about efforts to track and mitigate asteroids, meteors and other 'near Earth objects.' (Photo by Chip Somodevilla/Getty Images)