| A | B | Bo | C | Ci | D E F | G | H | I J K | L | M | N O | P Q | R | S | Si | T U V | W X Y Z |
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| Name (Status) | Flights | Flight Name | Launch | Landing | Position | |
|---|---|---|---|---|---|---|
| Simonyi, Charles (Current Cosmonaut) |
M | 1 | Soyuz TMA-10 (Scheduled) |
April 2007 | April 2007 | Commercial Cosmonaut (Space Adventures) |
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| Slayton, Donald "Deke" (Deceased Astronaut) |
M | 1 | Apollo "18" (ASTP) | July 15, 1975 | July 24, 1975 | Docking Module Pilot |
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| Smith, Michael (Deceased Astronaut) |
M | 1 | STS-51L (Died) | January 28, 1986 | January 28, 1986 | Pilot |
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| Smith, Steven (Current Astronaut) |
M | 4 | STS-68 | September 30, 1994 | October 11, 1994 | Mission Specialist 1 |
| STS-82 | February 11, 1997 | February 21, 1997 | Mission Specialist 5 | |||
| STS-103 | December 20, 1999 | December 28, 1999 | Mission Specialist 1 | |||
| STS-110 | April 8, 2002 | April 19, 2002 | Mission Specialist 5 | |||
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| Spring, Sherwood (Former Astronaut) |
M | 1 | STS-61B | November 27, 1985 | December 3, 1985 | Mission Specialist 1 |
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| Springer, Robert (Former Astronaut) |
M | 2 | STS-29 | March 13, 1989 | March 18, 1989 | Mission Specialist 2 |
| STS-38 | November 15, 1990 | November 20, 1990 | Mission Specialist 2 | |||
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| Stafford, Thomas (Former Astronaut) |
M | 4 | Gemini 6A | December 15, 1965 | December 16, 1965 | Pilot |
| Gemini 9A | June 3, 1966 | June 6, 1966 | Commander | |||
| Apollo 10 | May 18, 1969 | May 26, 1969 | Commander | |||
| Apollo "18" (ASTP) | July 15, 1975 | July 24, 1975 | Commander | |||
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| Stefanyshyn-Piper, Heidemarie (Current Astronaut) |
F | 1 | STS-115 | September 9, 2006 | September 21, 2006 | Mission Specialist 3 |
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| Stewart, Robert (Former Astronaut) |
M | 2 | STS-41B | February 3, 1984 | February 11, 1984 | Mission Specialist 3 |
| STS-51J | Oct. 3, 1985 | Oct. 7, 1985 | Mission Specialist 1 | |||
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| Sturckow, Frederick "Rick" (Current Astronaut) |
M | 3 | STS-88 | December 4, 1998 | December 16, 1998 | Pilot |
| STS-105 | August 10, 2001 | August 22, 2001 | Pilot | |||
| STS-117 (Scheduled) |
May 2007 | May 2007 | Commander | |||
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| Sullivan, Kathryn (Former Astronaut) |
F | 3 | STS-41G | October 5, 1984 | October 13, 1984 | Mission Specialist 2 |
| STS-31 | April 24, 1990 | April 29, 1990 | Mission Specialist 2 | |||
| STS-45 | March 24, 1992 | April 2, 1992 | Mission Specialist 1 | |||
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| Swanson, Steven (Current Astronaut) |
M | 1 | STS-117 (Scheduled) |
May 2007 | May 2007 | Mission Specialist 2 |
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| Swigert, John (Deceased Astronaut) |
M | 1 | Apollo 13 | April 11, 1970 | April 17, 1970 | Command Module Pilot |
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| No Flights | ||||||
| Siebold, Peter (X-Prize Astronaut) |
M | 0 | Scaled Composites Astronaut - Announced in 2003 Flew 3 test flights of SpaceShipOne |
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| Simon, George (Former Astronaut) |
M | 0 | STS-51F | Backup PS | Payload Specialist (PS) (Spacelab-2) Selected on August 9, 1978 - Retired on July 29, 1985 |
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| Skantze, Lawrence (Former Astronaut) |
M | 0 | Payload Specialist (DOD-Observer) - Selected in September 1985 - Retired in 1986 | |||
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| Sponable, Jess (Former Astronaut) |
M | 0 | DOD Manned Space Engineer Group 2 - Selected in September 1982 - Retired in 1987 | |||
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| Staib, David (Former Astronaut) |
M | 0 | DOD Manned Space Engineer Group 3 - Selected in September 1985 - Retired on June 30, 1986 | |||
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| Stevenson, Robert (Deceased Astronaut) |
M | 0 | STS-41G | Backup PS (Replaced by Paul Scully-Power) |
Payload Specialist (PS) (Civil Observer) Selected on June 13, 1984 - Retired in 1986 Died on August 12, 2001 |
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| STS-61K | Payload Specialist Proposed Prime Crew (Flight Cancelled) |
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| Stinemetz, Matt (X-Prize Test Pilot) |
M | 0 | Scaled Composites Test Pilot - Announced in 2003 | |||
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| Stott, Nicole (Current Astronaut) |
F | 0 | ISS Crew 17 | Backup Crew | NASA Group 18 - Selected on July 26, 2000 | |
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| Sundberg, Eric (Former Astronaut) |
M | 0 | STS-41E | Payload Specialist Proposed Backup Crew (Flight Cancelled) |
DOD Manned Space Engineer Group 1 Selected in August 1979 - Retired in 1985 |
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| A | B | Bo | C | Ci | D E F | G | H | I J K | L | M | N O | P Q | R | S | Si | T U V | W X Y Z |
|---|
Return to the Astronaut/Cosmonaut by Country Index
Updated - March 21, 2007