 In August 2018 he was assigned to Boe-CFT, the first test flight of the Boeing CST-100 Starliner.On January 22, 2019, NASA announced that Boe was unable to fly due to medical reasons and replaced him with Michael Fincke.Boe is a distinguished graduate with honors from the United States Air Force Academy, and was awarded the Fannie and John Hertz Foundation Fellowship for graduate studies.