Roger D. Launius

Roger D. Launius is an American historian and author of Lithuanian descent, a former chief historian of NASA. He retired in 2016 as Associate Director for Collections and Curatorial Affairs for the Smithsonian National Air and Space Museum in Washington, D.C. Launius is a consulting historian in air and space history. He has written many books on space flight, and also published on the history of the Latter Day Saint movement.

Read more on Wikipedia