Gary Knell, CEO, National Geographic Partners speaks before a showing of the Project Mars Competition's short films winners and the Mars series, Monday, November 5, 2018 at National Geographic Society Headquarters in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Gary Knell, President and CEO of National Geographic Society, gives opening remarks at an event to celebrate the 40th Anniversary of the launch of the Voyager 1 and 2 missions, Tuesday, September 5, 2017 at National Geographic Society Headquarters in Washington. Voyager 1 was launched September 5, 1977, with a mission to study Jupiter and Saturn, but now the twin Voyager spacecrafts are on a journey into interstellar space to search for the heliopause, a region never reached by any other spacecraft. Photo Credit: (NASA/Aubrey Gemignani)

From left to right, Dr. Stephen Petranek, MARS scientific advisor and co-executive producer; Gareth Edwards, film director, Rogue One: A Star Wars Story; Jeff DeWitt, NASA chief financial officer; Christyl Johnson, deputy director for technology and research investments, NASA Goddard Space Flight Center; NASA Administrator Jim Bridenstine; Ellen Stofan, director, Smithsonian's National Air and Space Museum; Gary Knell, CEO, National Geographic Partners; Eric Fanning, AIA President and CEO; and Chris Davenport, Washington Post space reporter, pose for a photo before a showing of the Project Mars Competition's short films winners and the Mars series, Monday, November 5, 2018 at National Geographic Society Headquarters in Washington. Photo Credit: (NASA/Aubrey Gemignani)

From left to right, Christyl Johnson, deputy director for technology and research investments, NASA Goddard Space Flight Center; NASA Administrator Jim Bridenstine; Gary Knell, CEO, National Geographic Partners; Ellen Stofan, director, Smithsonian's National Air and Space Museum; Eric Fanning, AIA President and CEO; and Jeff DeWitt, NASA Chief Financial Officer, pose for a photo before a showing of the Project Mars Competition's short films winners and the Mars series, Monday, November 5, 2018 at National Geographic Society Headquarters in Washington. Photo Credit: (NASA/Aubrey Gemignani)