NASA Administrator Charles Bolden provides remarks before a discussion about NASA's journey to Mars and the film "The Martian," Tuesday, Sept. 29, 2015, in Grosvenor Auditorium at the National Geographic Society Headquarters in Washington. NASA scientists and engineers served as technical consultants on the film. The movie portrays a realistic view of the climate and topography of Mars, based on NASA data, and some of the challenges NASA faces as we prepare for human exploration of the Red Planet in the 2030s. Photo Credit: (NASA/Joel Kowsky)

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