Dr. James Green, Planetary Science Division Director, NASA, speaks at "The Real Martians" event acknowledging NASA staff that contribute to scientific and technological advances that will enable the journey to Mars on Thursday, September 17, 2015 at NASA headquarters in Washington, DC. Andy Weir, author of "The Martian" participated in a live question and answer during the program. Photo Credit: (NASA/Aubrey Gemignani).

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Keywords: astronomy, aubrey, gemignani, green, headquarters, james, mars, martians, nasa, real, space