Which was an air force officer and an ESA astronaut, Claude Nicollier or Roberto Vittori?
Roberto Vittori Roberto Vittori (born 15 October 1964 in Viterbo) is an Italian air force officer and an ESA astronaut. After graduating from the Italian Accademia Aeronautica in 1989, Vittori flew in the Italian Air Force. He then trained as a test pilot in the United States.
Kevin P. Chilton Kevin Patrick "Chilli" Chilton (born November 3, 1954) is an American mechanical engineer, and former United States Air Force four-star General and test pilot. His last assignment was as Commander, U.S. Strategic Command from October 3, 2007 to January 28, 2011. Prior to his appointment to general officer ranks, Chilton spent 11 years of his military career as a NASA astronaut. He retired from the Air Force on February 1, 2011, after having achieved the highest rank of any military astronaut. On January 30, 2012, General Chilton was named to the board of directors of Orbital Sciences Corporation.