ISS040-E-006561 (30 May 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, is pictured in the Unity node of the International Space Station.

Expedition 39 Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, bottom, Flight Engineer Steve Swanson of NASA, middle, and Flight Engineer Oleg Artemyev of Roscosmos, wave farewell prior to boarding the Soyuz TMA-12M rocket for launch, Wednesday, March 26, 2014 at the Baikonur Cosmodrome in Kazakhstan. Skvortsov, Swanson, and Artemyev will spend the next six months aboard the International Space Station. Photo Credit: (NASA/Joel Kowsky)

ISS040-E-026307 (1 July 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, performs in-flight maintenance behind a rack in the Tranquility node of the International Space Station.

ISS040-E-026221 (30 June 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, holds the Carbon Dioxide Removal Assembly (CDRA) in the Kibo laboratory of the International Space Station.

ISS040-E-007340 (4 June 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with an Extravehicular Mobility Unit (EMU) spacesuit in the Quest airlock of the International Space Station.

ISS040-E-026305 (1 July 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, performs in-flight maintenance behind a rack in the Tranquility node of the International Space Station.

ISS040-E-123640 (7 Sept. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, eats a citrus fruit salad in the Unity node of the International Space Station.

Stennis Space Center Director Gene Goldman (r to l) presents a commemorative photo of a space shuttle main engine test firing to STS-119 Mission Commander Lee Archambault, Pilot Tony Antonelli and Mission Specialists Steve Swanson and Richard Arnold during the crew's May 5 visit to the facility.

Representative Steve Stockman (R-TX) asks astronauts Steve Swanson and Reid Wisemen a question at the live downlink with the International Space Station (ISS) Thursday, July 24, 2014 at the Rayburn House Office Building in Washington, DC. The event provided members of the Committee on Science, Space, and Technology the opportunity to ask Expedition 40 astronauts Steve Swanson and Reid Wiseman questions about their time living and working at the ISS. They are scheduled to return to Earth toward the end of this year.

Expedition 37 backup crewmembers Steve Swanson of NASA, left, and Alexander Skvortsov of Russia are seen at a press conference held at the Cosmonaut Hotel, on Tuesday, Sept. 24, 2013, in Baikonur, Kazakhstan. Photo Credit: (NASA/Carla Cioffi)

ISS040-E-086642 (2 Aug. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, floats freely near the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) in the Tranquility node of the International Space Station.

ISS040-E-123647 (7 Sept. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, uses a still camera at the windows in the Cupola of the International Space Station. A blue and white part of Earth and the blackness of space are visible through the windows.

ISS040-E-001051 (26 May 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with equipment in the airlock in the Kibo laboratory of the International Space Station. The JEM Robotic Maneuvering System Multi-Purpose Experiment Platform (JEMRMS MPEP) is visible at right.

ISS040-E-010502 (11 June 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with the Multi-user Drop Combustion Apparatus (MDCA) inside the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station. The MDCA contains hardware and software to conduct unique droplet combustion experiments in space.

ISS040-E-086619 (2 Aug. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, equipped with a bungee harness, exercises on the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) in the Tranquility node of the International Space Station.

ISS040-E-001052 (26 May 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with equipment in the airlock in the Kibo laboratory of the International Space Station. The JEM Robotic Maneuvering System Multi-Purpose Experiment Platform (JEMRMS MPEP) is visible in the airlock.

ISS040-E-123646 (7 Sept. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, uses a still camera at the windows in the Cupola of the International Space Station. A blue and white part of Earth and the blackness of space are visible through the windows.

ISS039-E-013244 (18 April 2014) --- NASA astronaut Rick Mastracchio, Expeditionn 39 flight engineer, replaces the Enhanced Input/Output Control Unit Circuit Card of the spare External Multiplexer/Demultiplexer (MDM), in preparation for an upcoming spacewalk. He will be joined by fellow NASA astronaut and Flight Engineer Steve Swanson on the spacewalk.

ISS040-E-001053 (26 May 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with equipment in the airlock in the Kibo laboratory of the International Space Station. The JEM Robotic Maneuvering System Multi-Purpose Experiment Platform (JEMRMS MPEP) is visible in the airlock.

ISS040-E-086609 (2 Aug. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, equipped with a bungee harness, exercises on the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) in the Tranquility node of the International Space Station.

ISS040-E-010496 (11 June 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with the Multi-user Drop Combustion Apparatus (MDCA) inside the Combustion Integrated Rack (CIR) in the Destiny laboratory of the International Space Station. The MDCA contains hardware and software to conduct unique droplet combustion experiments in space.

Congress and audience members applaud after a full-committee event held Thursday, July 24, 2014 at the Rayburn House Office Building in Washington, DC to allow members of the Committee on Science, Space, and Technology an opportunity to ask astronauts Steve Swanson and Reid Wiseman questions through a live downlink with the International Space Station (ISS). Expedition 40 astronauts Steve Swanson and Reid Wiseman have been living and working at the ISS for over two months and are scheduled to return to Earth toward the end of this year.

Congressman Derek Kilmer asks astronauts Steve Swanson and Reid Wisemen a question on behalf of a young audience member at the live downlink with the International Space Station (ISS) Thursday, July 24, 2014 at the Rayburn House Office Building in Washington, DC. The event allowed members of the Committee on Science, Space, and Technology to ask Expedition 40 astronauts Steve Swanson and Reid Wiseman questions about their time living and working at the ISS. They are scheduled to return to Earth toward the end of this year.

Chairman Lamar Smith (R-TX) held a full-committee event Thursday, July 24, 2014 at the Rayburn House Office Building in Washington, DC to allow members of the Committee on Science, Space, and Technology an opportunity to ask astronauts Steve Swanson and Reid Wiseman questions through a live downlink with the International Space Station (ISS). Expedition 40 astronauts Steve Swanson and Reid Wiseman have been living and working at the ISS for over two months and are scheduled to return to Earth toward the end of this year.

NASA backup crewmember Steve Swanson waves hello at a press conference held at the Cosmonaut Hotel, on Tuesday, Sept. 24, 2013, in Baikonur, Kazakhstan. Launch of the Soyuz rocket is scheduled for September 26 and will send Hopkins, Soyuz Commander Oleg Kotov and Russian Flight Engineer Sergei Ryazansky on a five and a half-month mission aboard the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Audience members watch as astronauts Reid Wiseman and Steve Swanson answer questions posed to them by members of the Committee on Science, Space, and Technology at a full-committee event held Thursday, July 24, 2014 at the Rayburn House Office Building in Washington, DC. The event gave members the opportunity to ask the astronauts questions through a live downlink with the International Space Station (ISS). Expedition 40 astronauts Steve Swanson and Reid Wiseman have been living and working at the ISS for over two months and are scheduled to return to Earth toward the end of this year.

ISS040-E-032827 (3 July 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, conducts a session with the Capillary Flow Experiment (CFE) in the Harmony node of the International Space Station. CFE is a suite of fluid physics experiments that investigate how fluids move up surfaces in microgravity. The results aim to improve current computer models that are used by designers of low gravity fluid systems and may improve fluid transfer systems for water on future spacecraft.

ISS040-E-032825 (3 July 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, conducts a session with the Capillary Flow Experiment (CFE) in the Harmony node of the International Space Station. CFE is a suite of fluid physics experiments that investigate how fluids move up surfaces in microgravity. The results aim to improve current computer models that are used by designers of low gravity fluid systems and may improve fluid transfer systems for water on future spacecraft.

ISS040-E-139596 (9 Sept. 2014) --- In the Unity node, NASA astronaut Steve Swanson (left), Expedition 40 commander, adds the Expedition 40 patch to the growing collection of insignias representing crews who have worked on the International Space Station. Russian cosmonauts Alexander Skvortsov (center) and Oleg Artemyev, both flight engineers, look on.

ISS040-E-105139 (23 Aug. 2014) --- Expedition 40 crew members pose for an in-flight crew portrait in the Harmony node of the International Space Station. Pictured on the front row are NASA astronaut Steve Swanson (center), commander; along with Russian cosmonauts Alexander Skvortsov (left) and Oleg Artemyev, both flight engineers. Pictured from the left (back row) are European Space Agency astronaut Alexander Gerst, Russian cosmonaut Maxim Suraev and NASA astronaut Reid Wiseman, all flight engineers.

ISS040-E-032820 (3 July 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, conducts a session with the Capillary Flow Experiment (CFE) in the Harmony node of the International Space Station. CFE is a suite of fluid physics experiments that investigate how fluids move up surfaces in microgravity. The results aim to improve current computer models that are used by designers of low gravity fluid systems and may improve fluid transfer systems for water on future spacecraft.

ISS040-E-105144 (23 Aug. 2014) --- Expedition 40 crew members pose for an in-flight crew portrait in the Harmony node of the International Space Station. Pictured on the front row are NASA astronaut Steve Swanson (center), commander; along with Russian cosmonauts Alexander Skvortsov (left) and Oleg Artemyev, both flight engineers. Pictured from the left (back row) are European Space Agency astronaut Alexander Gerst, Russian cosmonaut Maxim Suraev and NASA astronaut Reid Wiseman, all flight engineers.

ISS040-E-000788 (20 May 2014) --- Expedition 40 Commander Steve Swanson of NASA photographed this image from an Earth-facing window on the Earth-orbiting International Space Station featuring the Atlantic coast of the African nation of Morocco and the disputed territory of Western Sahara on May 20, 2014. The town of Tarfaya, Morocco, located at 22.45 degrees north latitude, and 13.13 degrees, east longitude, is visible. Obvious streaks in the sand were created by northerly winds.

Expedition 40 crew members pose for an in-flight crew portrait in the Harmony node of the International Space Station. Pictured on the front row are NASA astronaut Steve Swanson (center - holding a small guitar), commander; along with Russian cosmonauts Alexander Skvortsov (left) and Oleg Artemyev, both flight engineers. Pictured from the left (back row) are European Space Agency astronaut Alexander Gerst, Russian cosmonaut Maxim Suraev and NASA astronaut Reid Wiseman, all flight engineers.

ISS040-E-139592 (9 Sept. 2014) --- In the Unity node, NASA astronaut Steve Swanson (left), Expedition 40 commander, adds the Expedition 40 patch to the growing collection of insignias representing crews who have worked on the International Space Station. Russian cosmonauts Alexander Skvortsov (center) and Oleg Artemyev, both flight engineers, look on.

Expedition 39 flight engineer Steve Swanson of NASA is seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 Flight Engineer Steve Swanson of NASA, left, Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, center, and, Flight Engineer Oleg Artemyev of Roscosmos, right, are seen as they report to the General Director of the Russian Federal Space Agency, Roscosmos, Oleg Ostapenko, far right, outside of Building 254 following their suit up for launch, Wednesday, March 26, 2014 at the Baikonur Cosmodrome in Kazakhstan. The Soyuz spacecraft with Swanson, Skvortsov, and Artemyev onboard launched at 3:17 a.m. later that morning Kazakhstan time. Photo Credit: (NASA/Victor Zelentsov)

Expedition 39 primary crew flight engineer Steve Swanson of NASA, Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos, flight engineer Oleg Artemyev of Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 primary crew flight engineer Steve Swanson of NASA, Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos, flight engineer Oleg Artemyev of Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Members of the media are seen reflected in the glass seprating them from the crew of Expedition 39 during the final press conference held ahead of the launch of Expedition 39 prime crew members; Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Flight Engineer Steve Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos, to the International Space Station, Monday, March 24, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 backup crew member Barry Wilmore of NASA is seen in quarantine, behind glass, during the final press conference held ahead of the launch of Expedition 39 prime crew members; Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Flight Engineer Steve Swanson of NASA, and Flight Engineer Oleg Artemyev of Roscosmos, to the International Space Station, Monday, March 24, 2014 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 flight engineer Steve Swanson of NASA, Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos, and flight engineer Oleg Artemyev of Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 37 NASA Flight Engineer Michael Hopkins, far left, Soyuz Commander Oleg Kotov, Russian Flight Engineer Sergey Ryazanskiy, backup crewmembers Steve Swanson of NASA, Alexander Skvortsov of Russia and Oleg Artemyev of Russia, far right, are seen posing for a photo following a press conference held at the Cosmonaut Hotel, on Tuesday, Sept. 24, 2013, in Baikonur, Kazakhstan. Photo Credit: (NASA/Carla Cioffi)

Expedition 37 NASA Flight Engineer Michael Hopkins, far left, Soyuz Commander Oleg Kotov, Russian Flight Engineer Sergey Ryazanskiy, backup crewmembers Steve Swanson of NASA, Alexander Skvortsov of Russia and Oleg Artemyev of Russia, far right, are seen at a press conference held at the Cosmonaut Hotel, on Tuesday, Sept. 24, 2013, in Baikonur, Kazakhstan. Photo Credit: (NASA/Carla Cioffi)

Expedition 39 primary crew flight engineer Steve Swanson of NASA, Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos, flight engineer Oleg Artemyev of Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 Flight Engineer Steve Swanson of NASA, left, Soyuz Commander Alexander Skvortsov of the Russian Federal Space Agency, Roscosmos, center, and, Flight Engineer Oleg Artemyev of Roscosmos, right, are seen as they depart the Cosmonaut Hotel, Tuesday, March 25, 2014, in Baikonur, Kazakhstan. The trio launched on a six month mission to the International Space Station onboard the Soyuz TMA-12M spacecraft at 3:17 a.m. Kazakhstan time on Wednesday, March 26. Photo Credit: (NASA/Victor Zelentsov)

Expedition 39 flight engineer Steve Swanson of NASA and Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

Expedition 39 primary crew flight engineer Steve Swanson of NASA, Soyuz commander Aleksander Skvortsov of the Russian Federal Space Agency, Roscosmos, flight engineer Oleg Artemyev of Roscosmos and Expedition 39 backup crew Barry Wilmore of NASA, Alexander Samokutyaev of Roscosmos, and Elena Serova of Roscosmos are seen in quarantine, behind glass, during the final press conference be Monday, March 24, 2014, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The mission to the International Space Station is set to launch March 26 from the Baikonur Cosmodrome. Photo Credit: (NASA/Joel Kowsky)

JSC2006-E-44334 (22 Sept. 2006) --- Astronaut Steven R. Swanson, mission specialist

Visit to Glenn Research Center at Lewis Field, GRC, by Astronaut Steve Swanson

Expedition 39 flight engineers Steve Swanson and Rick Mastracchio work to remove and replace the Fan Pump Separator (FPS) on Extravehicular Mobility Unit (EMU) 3005. Image was taken in the Quest Airlock (A/L) and was released by Swanson on Instagram.

Astronaut Steve Swanson,Expedition 40 Commander,is photographed working with the Robonauts processing unit (or brain) in the U.S. Laboratory module.

S119-E-010204 (26 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, exercises on a bicycle ergometer on the middeck of Space Shuttle Discovery.

Close-up view of Expedition 39 flight engineer Steve Swanson backdropped by Earth and space at the end of Extravehicular Activity 26 (EVA 26).

S119-E-006372 (17 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, exercises on the middeck of Space Shuttle Discovery.

Expedition 39 flight engineer Steve Swanson waves to the camera during Extravehicular Activity 26 (EVA 26) cleanup operations at the S0 Truss.

NASA astronaut Reid Wiseman,Expedition 40 flight engineer, and NASA Astronaut Steve Swanson, Commander, are photographed in the Russian section of the International Space Station.

ISS039-E-011886 (14 April 2014) --- In the Quest airlock of the International Space Station, Expedition 39 Flight Engineer Steve Swanson of NASA works on one of the Extravehicular Mobility Unit (EMU) spacesuits to be used on an upcoming spacewalk on which Swanson and crewmate Rick Mastracchio of NASA will participate.

ISS039-E-020887 (13 May 2014) --- Inside the Harmony node of the International Space Station, Expedition 39 Flight Engineer Steve Swanson of NASA works with the Petri Plants experiment on May 13, 2014. Only hours after this picture was taken, Swanson took over command of the orbital outpost.

ISS039-E-020885 (13 May 2014) --- Inside the Harmony node of the International Space Station, Expedition 39 Flight Engineer Steve Swanson of NASA works with the Petri Plants experiment on May 13, 2014. Only hours after this picture was taken, Swanson took over command of the orbital outpost.

ISS039-E-005744 (30 March 2014) --- By the rationale of some observers, this image of Expedition 39 Flight Engineer Steve Swanson could be titled "Return to the Old Stomping Grounds, Five Years Hence," except for the fact that it is difficult to stomp in a weightless environment and the fact that the Cupola was not part of the orbital outpost in March of 2009, the last time Swanson visited it. The NASA astronaut and two Russian cosmonauts arrived at the station on March 27, 2014, and this image of a jubilant Swanson was one of the first showing members of the second aggregate of the Expedition 39 crew.

S119-E-006168 (16 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, reads a procedures checklist while working on the middeck of Space Shuttle Discovery during flight day two activities.

Expedition 40 crew member Steve Swanson with instructor Michaela Benda during crew training. Photo Date: January 8, 2014. Location: Building 5, SSTF. Photographer: Robert Markowitz

Expedition 40 crew member Steve Swanson during his arrival at Ellington Field. Photo Date: September 11, 2014. Location: Ellington Field. Photographer: Robert Markowitz

Date: 05-13-13 Location: Ellington, 276 Subject: T-38 flight prep at EFD for Steve Swanson (Exp. 39/40) and Reid Wiseman (Exp. 40/41) Photographer: James Blair/NASA

Date: 10-24-13 Location: Bldg 7, SSATA Subject: Support for SSATA Crew Training & Certification - ISS Increment 39 Crew Member Steve Swanson Photograher: James Blair

Expedition 40 crew member Steve Swanson during his arrival at Ellington Field. Photo Date: September 11, 2014. Location: Ellington Field. Photographer: Robert Markowitz

PHOTO DATE: 05-03-13 LOCATION: Bldg. 16, Dome SUBJECT: Expedition 39/40 and Soyuz 38 crew member Steve Swanson during ROBO T&C refresher class. PHOTOGRAPHER: BILL STAFFORD

ISS039-E-015596 (25 April 2014) --- NASA astronaut Steve Swanson, Expedition 39 flight engineer, works with NanoRacks hardware in the Kibo laboratory of the Japan Aerospace Exploration Agency.

PHOTO DATE: 04-23-13 LOCATION: NBL - Pool Topside SUBJECT: Astronaut Expedition 39/40 (Soyuz 38) astronaut Steve Swanson during ISS Maintenance EVAAT at the NBL. PHOTOGRAPHER: BILL STAFFORD

Expedition 40 crew member Steve Swanson with instructor Michaela Benda during crew training. Photo Date: January 8, 2014. Location: Building 5, SSTF. Photographer: Robert Markowitz

S119-E-006562 (18 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, floats through a hatch on the International Space Station while Space Shuttle Discovery remains docked with the station.

Date: 10-24-13 Location: Bldg 7, SSATA Subject: Support for SSATA Crew Training & Certification - ISS Increment 39 Crew Member Steve Swanson Photograher: James Blair

ISS039-E-014696 (22 April 2014) --- Expedition 39 Flight Engineer Steve Swanson of NASA, works out on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the U.S. lab Destiny of the International Space Station.

PHOTO DATE: 04-23-13 LOCATION: NBL - Pool Topside SUBJECT: Astronaut Expedition 39/40 (Soyuz 38) astronaut Steve Swanson during ISS Maintenance EVAAT at the NBL. PHOTOGRAPHER: BILL STAFFORD

PHOTO DATE: 04-23-13 LOCATION: NBL - Pool Topside SUBJECT: Astronaut Expedition 39/40 (Soyuz 38) astronaut Steve Swanson during ISS Maintenance EVAAT at the NBL. PHOTOGRAPHER: BILL STAFFORD

PHOTO DATE: 05-03-13 LOCATION: Bldg. 16, Dome SUBJECT: Expedition 39/40 and Soyuz 38 crew member Steve Swanson during ROBO T&C refresher class. PHOTOGRAPHER: BILL STAFFORD

ISS040-E-086654 (1 Aug. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, uses a sound level meter in the Destiny laboratory of the International Space Station.

Expedition 40 crew member Steve Swanson during his arrival at Ellington Field. Photo Date: September 11, 2014. Location: Ellington Field. Photographer: Robert Markowitz

S119-E-008161 (25 March 2009) --- Astronauts Tony Antonelli (left), STS-119 pilot; and Steve Swanson, mission specialist, are pictured on the flight deck of Space Shuttle Discovery during flight day 11 activities.

ISS040-E-086653 (1 Aug. 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, uses a sound level meter in the Destiny laboratory of the International Space Station.

S119-E-010732 (26 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, occupies the commander's station on the forward flight deck of Space Shuttle Discovery during flight day 12 activities.

PHOTO DATE: 04-23-13 LOCATION: NBL - Pool Topside SUBJECT: Astronaut Expedition 39/40 (Soyuz 38) astronaut Steve Swanson during ISS Maintenance EVAAT at the NBL. PHOTOGRAPHER: BILL STAFFORD

Expedition 40 crew member Steve Swanson during his arrival at Ellington Field. Photo Date: September 11, 2014. Location: Ellington Field. Photographer: Robert Markowitz

PHOTO DATE: 05-03-13 LOCATION: Bldg. 16, Dome SUBJECT: Expedition 39/40 and Soyuz 38 crew member Steve Swanson during ROBO T&C refresher class. PHOTOGRAPHER: BILL STAFFORD

PHOTO DATE: 04-23-13 LOCATION: NBL - Pool Topside SUBJECT: Astronaut Expedition 39/40 (Soyuz 38) astronaut Steve Swanson during ISS Maintenance EVAAT at the NBL. PHOTOGRAPHER: BILL STAFFORD

S119-E-006381 (17 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, uses a computer on the middeck of Space Shuttle Discovery during flight day three activities.

PHOTO DATE: 05-03-13 LOCATION: Bldg. 16, Dome SUBJECT: Expedition 39/40 and Soyuz 38 crew member Steve Swanson during ROBO T&C refresher class. PHOTOGRAPHER: BILL STAFFORD

Astronaut Alexander Gerst,Expedition 40 flight engineer (background),and Expedition 40 Commander Steve Swanson are photographed performing blood sample collection in the Columbus module as part of HRF Generic Frozen Blood Collection Operations.

Expedition 40 crew member Steve Swanson with instructor Michaela Benda during crew training. Photo Date: January 8, 2014. Location: Building 5, SSTF. Photographer: Robert Markowitz

Date: 10-24-13 Location: Bldg 7, SSATA Subject: Support for SSATA Crew Training & Certification - ISS Increment 39 Crew Member Steve Swanson Photograher: James Blair

PHOTO DATE: 04-23-13 LOCATION: NBL - Pool Topside SUBJECT: Astronaut Expedition 39/40 (Soyuz 38) astronaut Steve Swanson during ISS Maintenance EVAAT at the NBL. PHOTOGRAPHER: BILL STAFFORD

ISS040-E-064628 (15 July 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, replaces filters in the Potable Water Dispenser (PWD) in the Destiny laboratory of the International Space Station.

S119-E-006560 (18 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, floats through a hatch on the International Space Station while Space Shuttle Discovery is docked with the station.

PHOTO DATE: 04-23-13 LOCATION: NBL - Pool Topside SUBJECT: Astronaut Expedition 39/40 (Soyuz 38) astronaut Steve Swanson during ISS Maintenance EVAAT at the NBL. PHOTOGRAPHER: BILL STAFFORD

ISS040-E-000297 (16 May 2014) --- NASA astronaut Steve Swanson, Expedition 40 commander, works with the General Laboratory Active Cryogenic ISS Experiment Refrigerator (GLACIER) in the Destiny laboratory of the International Space Station.

Date: 05-13-13 Location: Ellington, 276 Subject: T-38 flight prep at EFD for Steve Swanson (Exp. 39/40) and Reid Wiseman (Exp. 40/41) Photographer: James Blair/NASA

Expedition 40 crew member Steve Swanson with instructor Michaela Benda during crew training. Photo Date: January 8, 2014. Location: Building 5, SSTF. Photographer: Robert Markowitz

PHOTO DATE: 05-03-13 LOCATION: Bldg. 16, Dome SUBJECT: Expedition 39/40 and Soyuz 38 crew member Steve Swanson during ROBO T&C refresher class. PHOTOGRAPHER: BILL STAFFORD

Date: 10-24-13 Location: Bldg 7, SSATA Subject: Support for SSATA Crew Training & Certification - ISS Increment 39 Crew Member Steve Swanson Photograher: James Blair