Astronauten
Pete Conrad
National Aeronautics and Space Administration
Peter Siebold
Virgin Galactic
Peter Wisoff
National Aeronautics and Space Administration
Philippe Perrin
National Center of Space Research
Phạm Tuân
Russian Federal Space Agency (ROSCOSMOS)
Pierre J. Thuot
National Aeronautics and Space Administration
Piers Sellers
National Aeronautics and Space Administration
Pyotr Dubrov
Russian Federal Space Agency (ROSCOSMOS)
Pyotr Klimuk
Russian Federal Space Agency (ROSCOSMOS)
Rabea Rogge
SpaceX
Raja Chari
National Aeronautics and Space Administration
Rakesh Sharma
Russian Federal Space Agency (ROSCOSMOS)
Randolph Bresnik
National Aeronautics and Space Administration
Rayyanah Barnawi
Saudi Space Agency
Reinhard Furrer
German Aerospace Center
Reinhold Ewald
European Space Agency
Rex J. Walheim
National Aeronautics and Space Administration
Richard A. Searfoss
National Aeronautics and Space Administration
Richard F. Gordon Jr.
National Aeronautics and Space Administration
Richard Garriott
British
Richard H. Truly
National Aeronautics and Space Administration
Richard Hieb
National Aeronautics and Space Administration
Richard M. Linnehan
National Aeronautics and Space Administration
Richard Mastracchio
National Aeronautics and Space Administration