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WASHINGTON, DC – NOVEMBER 5: Dr. Stephen Petranek, MARS scientific advisor, co-executive producer and Big Thinker; award-winning author of How We’ll Live on Mars, speaks at the joint National Geographic and Aerospace Industries Association screening event for Season 2 of the acclaimed series MARS and the film and poster winners of the Project Mars Competition. MARS returns Monday, November 12, at 9/8c on National Geographic.  (Photo by Oliver Contreras/National Geographic/PictureGroup)
WASHINGTON, DC – NOVEMBER 5: Dr. Stephen Petranek, MARS scientific advisor, co-executive producer and Big Thinker; award-winning author of How We’ll Live on Mars, speaks at the joint National Geographic and Aerospace Industries Association screening event for Season 2 of the acclaimed series MARS and the film and poster winners of the Project Mars Competition. MARS returns Monday, November 12, at 9/8c on National Geographic. (Photo by Oliver Contreras/National...
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