Dr. Stephen Petranek

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NEW YORK - OCTOBER 4: Author Dr. Stephen Petranek attends the 2018 NY Comic-Con panel for "When Earthlings Become Martians: National Geographic’s Mars, Season 2" at the Javits Convention Center on October 4, 2018 in New York City. (Photo by Anthony Behar/National Geographic/PictureGroup)
NEW YORK - OCTOBER 4: Author Dr. Stephen Petranek attends the 2018 NY Comic-Con panel for "When Earthlings Become Martians: National Geographic’s Mars, Season 2" at the Javits Convention Center on October 4, 2018 in New York City. (Photo by Anthony Behar/National Geographic/PictureGroup)
Filename: marsnatgeocomiconpgtb-010.jpg
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