Portrait of Robert R. Gilruth. More than anyone else at Langley, began to push the idea that manned spaceflight was the next great challenge for aeronautic engineers. As head of NASA s Space Task Group, he was responsible for planning and carrying out Project Mercury, the country's first manned spaceflight program. Photograph published in Engineer in Charge: A History of the Langley Aeronautical Laboratory, 1917-1958 by James R. Hansen. Page 386.