70th International Astronautical Congress

Philippe Étienne, French Ambassador to the U.S., right, and Jean-Yves Le Gall, president of the French space agency, National Centre for Space Studies (CNES), left, try virtual reality viewers at the NASA exhibit during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Philippe Étienne, French Ambassador to the U.S., right, and Jean-Yves Le Gall, president of the French space agency, National Centre for Space Studies (CNES), left, try virtual reality viewers at the NASA exhibit during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)