Astronauten
Dick Scobee
National Aeronautics and Space Administration
Dirk Frimout
European Space Agency
Dmitri Kondratyev
Russian Federal Space Agency (ROSCOSMOS)
Dmitriy Petelin
Russian Federal Space Agency (ROSCOSMOS)
Dominic A. Antonelli
National Aeronautics and Space Administration
Dominic L. Pudwill Gorie
National Aeronautics and Space Administration
Don L. Lind
National Aeronautics and Space Administration
Donald A. Thomas
National Aeronautics and Space Administration
Donald E. Williams
National Aeronautics and Space Administration
Donald H. Peterson
National Aeronautics and Space Administration
Donald Pettit
National Aeronautics and Space Administration
Donald R. McMonagle
National Aeronautics and Space Administration
Donn F. Eisele
National Aeronautics and Space Administration
Dorothy Metcalf-Lindenburger
National Aeronautics and Space Administration
Doug Shane
Virgin Galactic
Douglas G. Hurley
National Aeronautics and Space Administration
Douglas H. Wheelock
National Aeronautics and Space Administration
Duane G. Carey
National Aeronautics and Space Administration
Dumitru Prunariu
Russian Federal Space Agency (ROSCOSMOS)
Dylan Taylor
Blue Origin
Ed Lu
National Aeronautics and Space Administration
Ed White
National Aeronautics and Space Administration
Edgar Mitchell
National Aeronautics and Space Administration
Edward Gibson
National Aeronautics and Space Administration