
NASA astronaut Peggy Whitson is seen during an interview, Friday, March 2, 2018 at the Smithsonian's National Air and Space Museum in Washington. Whitson spent 288 days onboard the International Space Station as a member of Expedition 50, 51, and 52, conducting four spacewalks and contributing to hundreds of experiments in biology, biotechnology, physical science and Earth science during her stay. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Peggy Whitson is seen during an interview, Friday, March 2, 2018 at the Smithsonian's National Air and Space Museum in Washington. Whitson spent 288 days onboard the International Space Station as a member of Expedition 50, 51, and 52, conducting four spacewalks and contributing to hundreds of experiments in biology, biotechnology, physical science and Earth science during her stay. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Peggy Whitson tapes a segment for STEM in 30 with Marty Kelsey, left, and Beth Wilson, Friday, March 2, 2018 at the Smithsonian's National Air and Space Museum in Washington. Whitson spent 288 days onboard the International Space Station as a member of Expedition 50, 51, and 52, conducting four spacewalks and contributing to hundreds of experiments in biology, biotechnology, physical science and Earth science during her stay. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Peggy Whitson tapes a segment for STEM in 30 with Marty Kelsey, left, and Beth Wilson, Friday, March 2, 2018 at the Smithsonian's National Air and Space Museum in Washington. Whitson spent 288 days onboard the International Space Station as a member of Expedition 50, 51, and 52, conducting four spacewalks and contributing to hundreds of experiments in biology, biotechnology, physical science and Earth science during her stay. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Peggy Whitson is interviewed by Marty Kelsey, Friday, March 2, 2018 at the Smithsonian's National Air and Space Museum in Washington. Whitson spent 288 days onboard the International Space Station as a member of Expedition 50, 51, and 52, conducting four spacewalks and contributing to hundreds of experiments in biology, biotechnology, physical science and Earth science during her stay. Photo Credit: (NASA/Joel Kowsky)

iss050e037908 (2/2/2017) --- NASA astronaut Peggy Whitson and European Space Agency (ESA) Thomas Pesquet in the Bigelow Expandable Aerospace Module (BEAM). The Bigelow Expandable Activity Module (BEAM) is an experimental expandable capsule that docks with the International Space Station (ISS). After docking, BEAM inflates to roughly 13 feet long and 10.5 feet in diameter to provide a habitable volume where a crew member can enter.

iss050e011454 (11/23/2016) --- A view of NASA astronaut Peggy Whitson using an iPAD containing the Dose Tracker application, in the Japanese Experiment Module (JEM) aboard the International Space Station (ISS). This study documents the medication usage of crew members before and during their missions by capturing previously unrecorded data regarding medication use during spaceflight, including side effect qualities, frequencies and severity. This research-oriented data is collected for research purposes, separate from medical records.

iss051e050849 (5/26/2017) --- NASA astronaut Peggy Whitson and Jack Fischer work to install a Gas Supply Hose Assembly and Gas Bottle Unit Air in the Electrostatic Levitation Furnace (ELF) in the Kibo Japanese Experiment Pressurized Module (JPM) aboard the International Space Station (ISS) in supprt of the Passive Thermal Flight Experiment.The Advanced Passive Thermal eXperiment (APTx) tests three advanced thermal management technologies. It demonstrates the in-space performance of each, an important step toward improving these technologies for use on future space exploration missions.

iss051e050850 (5/26/2017) --- NASA astronaut Peggy Whitson and Jack Fischer work to install a Gas Supply Hose Assembly and Gas Bottle Unit Air in the Electrostatic Levitation Furnace (ELF) in the Kibo Japanese Experiment Pressurized Module (JPM) aboard the International Space Station (ISS) in supprt of the Passive Thermal Flight Experiment.The Advanced Passive Thermal eXperiment (APTx) tests three advanced thermal management technologies. It demonstrates the in-space performance of each, an important step toward improving these technologies for use on future space exploration missions.

ISS016-E-027923 (1 Feb. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, prepares a beverage in the Zvezda Service Module of the International Space Station.

JSC2001-03044 (28 November 2001) --- Astronaut Peggy A. Whitson, mission specialist.

iss052e009298 (Junr 28, 2017) --- Astronaut Peggy Whitson was pictured June 28 conducting a live video interview with reporters on Earth.

ISS016-E-026869 (3 Feb. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, floats in the Destiny laboratory of the International Space Station.

ISS016-E-026845 (3 Feb. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, works in the Destiny laboratory of the International Space Station.

ISS016-E-017357 (17 Dec. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, works in the Destiny laboratory of the International Space Station.

ISS016-E-017370 (18 Dec. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA). During the 6-hour, 56-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, looked for the cause of partial loss of electrical power to one of the International Space Station's two Beta Gimbal Assemblies (BGA) for starboard solar wings and examined damage to the starboard Solar Alpha Rotary Joint (SARJ). The spacewalk was the 100th for the construction and maintenance of the station.

ISS016-E-011297 (15 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, prepares a meal at the galley in the Zvezda Service Module of the International Space Station.

ISS016-E-014181 (1 Dec. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, poses for a photo while floating in the Harmony node of the International Space Station.

S122-E-009521 (16 Feb. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, holds a beverage on the middeck of Space Shuttle Atlantis (STS-122) while docked with the International Space Station.

ISS016-E-017499 (18 Dec. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA). During the 6-hour, 56-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, looked for the cause of partial loss of electrical power to one of the International Space Station's two Beta Gimbal Assemblies (BGA) for starboard solar wings and examined damage to the starboard Solar Alpha Rotary Joint (SARJ). The spacewalk was the 100th for the construction and maintenance of the station. A blue and white Earth provides the background for the scene.

ISS016-E-025998 (30 Jan. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as maintenance and construction continue on the International Space Station. During the 7-hour, 10-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, replaced a motor, known as the Bearing Motor Roll Ring Module (BMRRM), at the base of one of the station's solar wings. The BMRRM is part of the Beta Gimbal Assembly, which experienced electrical failures Dec. 8. A blue and white Earth and the blackness of space provide the backdrop for the scene.

ISS016-E-025993 (30 Jan. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as maintenance and construction continue on the International Space Station. During the 7-hour, 10-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, replaced a motor, known as the Bearing Motor Roll Ring Module (BMRRM), at the base of one of the station's solar wings. The BMRRM is part of the Beta Gimbal Assembly, which experienced electrical failures Dec. 8. A blue and white Earth and the blackness of space provide the backdrop for the scene.

ISS016-E-026031 (30 Jan. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as maintenance and construction continue on the International Space Station. During the 7-hour, 10-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, replaced a motor, known as the Bearing Motor Roll Ring Module (BMRRM), at the base of one of the station's solar wings. The BMRRM is part of the Beta Gimbal Assembly, which experienced electrical failures Dec. 8. A blue and white Earth and the blackness of space provide the backdrop for the scene.

ISS016-E-017501 (18 Dec. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA). During the 6-hour, 56-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, looked for the cause of partial loss of electrical power to one of the International Space Station's two Beta Gimbal Assemblies (BGA) for starboard solar wings and examined damage to the starboard Solar Alpha Rotary Joint (SARJ). The spacewalk was the 100th for the construction and maintenance of the station. A blue and white Earth provides the background for the scene.

ISS016-E-025989 (30 Jan. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as maintenance and construction continue on the International Space Station. During the 7-hour, 10-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, replaced a motor, known as the Bearing Motor Roll Ring Module (BMRRM), at the base of one of the station's solar wings. The BMRRM is part of the Beta Gimbal Assembly, which experienced electrical failures Dec. 8. A blue and white Earth provides the backdrop for the scene.

ISS016-E-012617 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory. The blackness of space and Earth's horizon provide the backdrop for the scene.

ISS016-E-011627 (20 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as maintenance and construction continue on the International Space Station. During the 6-hour, 40-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, began the external outfitting of the Harmony node in its new position in front of the Destiny laboratory.

ISS016-E-012572 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory.

ISS016-E-012610 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory. The blackness of space and Earth's horizon provide the backdrop for the scene.

ISS016-E-012487 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory.

ISS016-E-012620 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory. The blackness of space and Earth's horizon provide the backdrop for the scene.

ISS016-E-012616 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory. The blackness of space and Earth's horizon provide the backdrop for the scene.

S120-E-006397 (25 Oct. 2007) --- Astronaut Peggy Whitson (right), Expedition 16 commander, greets astronaut Pam Melroy, STS-120 commander, after hatch opening between the International Space Station and Space Shuttle Discovery. Whitson is partially in the Pressurized Mating Adapter (PMA-2) and Melroy is in the Orbiter Docking Compartment (ODC).

ISS016-E-012425 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory. A cloud-covered section of Earth provides the backdrop for the scene.

ISS016-E-014193 (1 Dec. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, trims astronaut Daniel Tani's hair in the Harmony node of the International Space Station. Whitson used hair clippers fashioned with a vacuum device to garner freshly cut hair.

ISS016-E-014192 (1 Dec. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, trims astronaut Daniel Tani's hair in the Harmony node of the International Space Station. Whitson used hair clippers fashioned with a vacuum device to garner freshly cut hair.

KIM WHITSON, DIRECTOR OF PROCUREMENT AT THE MARSHALL SPACE FLIGHT CENTER IN HUNTSVILLE ALABAMA, SPEAKS TO THE NASA / MARSHALL SMALL BUSINESS ALLIANCE MEETING ON SEPT. 18 AT THE DAVIDSON CENTER FOR SPACE EXPLORATION AT THE U.S. SPACE & ROCKET CENTER. MORE THAN 450 REPRESENTATIVES FROM SMALL BUSINESSES DISCUSSED POTENTIAL SUB-CONTRACTING OPPORTUNITIES WITH REPRESENTATIVES FROM MARSHALL CENTER, JOHNSON SPACE CENTER, GODDARD SPACE FLIGHT CENTER, KENNEDY SPACE CENTER, STENNIS SPACE CENTER AND THE NASA SHARED SERVICES.

S120-E-007409 (30 Oct. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, pauses for a photo while working in the Quest Airlock of the International Space Station while Space Shuttle Discovery (STS-120) is docked with the station.

S122-E-007664 (10 Feb. 2008) --- Astronauts Peggy Whitson, Expedition 16 commander; Stanley Love and Rex Walheim (bottom), both STS-122 mission specialists, work in the Quest Airlock of the International Space Station while Space Shuttle Atlantis is docked with the station.

ISS016-E-010241 (8 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander; and cosmonaut Yuri I. Malenchenko, flight engineer representing Russia's Federal Space Agency, work with an Extravehicular Mobility Unit (EMU) helmet in the Quest Airlock of the International Space Station.

ISS016-E-010244 (8 Nov. 2007) --- Cosmonaut Yuri I. Malenchenko, Expedition 16 flight engineer representing Russia's Federal Space Agency, tries on an Extravehicular Mobility Unit (EMU) helmet in the Quest Airlock of the International Space Station. Astronaut Peggy A. Whitson, commander, assisted Malenchenko.

ISS016-E-011279 (15 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, prepares a meal at the galley in the Zvezda Service Module of the International Space Station. Cosmonaut Yuri I. Malenchenko, flight engineer representing Russia's Federal Space Agency, is visible in the background.

ISS016-E-021932 (8 Jan. 2008) --- NASA astronaut Peggy A. Whitson, Expedition 16 commander; and cosmonaut Yuri I. Malenchenko, flight engineer representing Russia's Federal Space Agency, work in the Pirs Docking Compartment of the International Space Station.

ISS016-E-009700 (4 Nov. 2007) --- Astronaut Clay Anderson, STS-120 mission specialist, prepares to eat a meal at the galley in the Zvezda Service Module of the International Space Station while Space Shuttle Discovery is docked with the station. Astronaut Peggy Whitson, Expedition 16 commander, is at right.

Expedition 16 Commander Peggy Whitson is helped out of a helicopter after landing in northern Kazakhstan, Friday, April 19, 2008. Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi landed their Soyuz TMA-11 spacecraft in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

Expedition 16 Commander Peggy Whitson is helped out of a helicopter after landing in northern Kazakhstan, Friday, April 19, 2008. Whitson, Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi landed their Soyuz TMA-11 spacecraft in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Reuters/Pool)

Expedition 16 Commander Peggy Whitson waves to a crowd of well-wishers from the top of the airplane steps as she arrives at Chkalovsky Airport near Star City, Russia along with Flight Engineer and Soyuz Commander Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi, Friday, April 19, 2008. Whitson, Malechenko and Yi landed their Soyuz TMA-11 spacecraft in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

ISS016-E-013173 (28 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, works in the vestibule between the Harmony node and Destiny laboratory of the International Space Station.

ISS016-E-013171 (28 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, works in the vestibule between the Harmony node and Destiny laboratory of the International Space Station.

ISS005-E-09719 (14 August 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, photographed in her thermal undergarment prior to donning a Russian Orlan spacesuit, prepares for an upcoming session of extravehicular activity (EVA) from the Pirs docking compartment on the International Space Station (ISS). The spacewalk is scheduled for August 16, 2002, which will be the 42nd spacewalk at the station and the 17th based out of the station. Whitson and cosmonaut Valery G. Korzun, mission commander, will install six debris panels on the Zvezda Service Module. The panels are designed to shield Zvezda from potential space debris impacts.

ISS005-E-09713 (14 August 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, wears a Russian Orlan spacesuit as she prepares for an upcoming session of extravehicular activity (EVA) from the Pirs docking compartment on the International Space Station (ISS). The spacewalk is scheduled for August 16, 2002, which will be the 42nd spacewalk at the station and the 17th based out of the station. Whitson and cosmonaut Valery G. Korzun, mission commander, will install six debris panels on the Zvezda Service Module. The panels are designed to shield Zvezda from potential space debris impacts.

ISS005-E-09716 (14 August 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, wears a Russian Orlan spacesuit as she prepares for an upcoming session of extravehicular activity (EVA) from the Pirs docking compartment on the International Space Station (ISS). The spacewalk is scheduled for August 16, 2002, which will be the 42nd spacewalk at the station and the 17th based out of the station. Whitson and cosmonaut Valery G. Korzun, mission commander, will install six debris panels on the Zvezda Service Module. The panels are designed to shield Zvezda from potential space debris impacts.

ISS015-E-36035 (17 Oct. 2007) --- NASA astronaut Peggy A. Whitson, Expedition 16 commander, works with an Extravehicular Mobility Unit (EMU) spacesuit in the Quest Airlock of the International Space Station. Whitson and cosmonaut Yuri I. Malenchenko (out of frame), flight engineer representing Russia's Federal Space Agency, are scheduled to perform the fifth session of extravehicular activity (EVA) while Discovery is docked with the station.

ISS005-E-06787 (5 July 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, works near the Microgravity Science Glovebox (MSG) in the Destiny laboratory on the International Space Station (ISS). Whitson spent much of the morning installing the Solidification Using a Baffle in Sealed Ampoules (SUBSA) experiment in the MSG. The SUBSA installation will be completed once the MSG is activated.

ISS005-E-18072 (October 2002) --- Cosmonaut Valery G. Korzun, Expedition Five mission commander, cuts astronaut Peggy A. Whitson’s hair in the Zvezda Service Module on the International Space Station (ISS). Whitson, flight engineer, holds a vacuum device the crew has fashioned to garner freshly cut hair, which is floating freely.

ISS005-E-18071 (October 2002) --- Cosmonaut Valery G. Korzun, Expedition Five mission commander, cuts astronaut Peggy A. Whitson’s hair in the Zvezda Service Module on the International Space Station (ISS). Whitson, flight engineer, holds a vacuum device the crew has fashioned to garner freshly cut hair, which is floating freely.

ISS016-E-009989 (9 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station (ISS). During the spacewalk Whitson and cosmonaut Yuri I. Malenchenko (out of frame), flight engineer representing Russia's Federal Space Agency, prepared for the relocation of the Pressurized Mating Adapter 2 (PMA-2) and the subsequent move of the new Harmony node to its permanent ISS home.

ISS016-E-010001 (9 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station (ISS). During the spacewalk Whitson and cosmonaut Yuri I. Malenchenko (out of frame), flight engineer representing Russia's Federal Space Agency, prepared for the relocation of the Pressurized Mating Adapter 2 (PMA-2) and the subsequent move of the new Harmony node to its permanent ISS home.

S122-E-007029 (9 Feb. 2008) --- In a case of commander greets commander, astronauts Peggy Whitson of the International Space Station crew, and Steve Frick of the STS-122 Space Shuttle Atlantis crew, greet each other shortly after the two spacecraft docked in space and the hatches were opened on Feb. 9, 2008.

ISS005-E-08821 (7 August 2002) --- Cosmonaut Sergei Y. Treschev (left) and astronaut Peggy A. Whitson, both Expedition Five flight engineers, are photographed near the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module on the International Space Station (ISS). Treschev represents Rosaviakosmos.

ISS005-E-17388 (13 October 2002) --- Cosmonaut Sergei Y. Treschev (left) and astronaut Peggy A. Whitson, Expedition Five flight engineers, perform maintenance on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module on the International Space Station (ISS). Treschev represents Rosaviakosmos.

ISS005-E-08819 (7 August 2002) --- Cosmonaut Sergei Y. Treschev (left) and astronaut Peggy A. Whitson, both Expedition Five flight engineers, perform maintenance on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module on the International Space Station (ISS). Treschev represents Rosaviakosmos.

ISS005-E-17387 (13 October 2002) --- Cosmonaut Sergei Y. Treschev (left) and astronaut Peggy A. Whitson, Expedition Five flight engineers, perform maintenance on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module on the International Space Station (ISS). Treschev represents Rosaviakosmos.

ISS016-E-036365 (17 April 2008) --- NASA astronaut Peggy Whitson (right), Expedition 16 commander; Russian Federal Space Agency cosmonaut Yuri Malenchenko, flight engineer; and South Korean spaceflight participant So-yeon Yi pose for a photo in the Harmony node of the International Space Station.

iss051e034104 (5/02/2017) --- NASA astronaut Peggy Whitson pauses for a photo while working inside the Microgravity Sciences Glovebox (MSG) to conduct the first BioCell media change for the OsteoOmics experiment. Image was taken in the Destiny U.S. Laboratory.

ISS005-E-08808 (7 August 2002) --- Cosmonaut Sergei Y. Treschev (left) and astronaut Peggy A. Whitson, both Expedition Five flight engineers, perform maintenance on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module on the International Space Station (ISS). Treschev represents Rosaviakosmos.

ISS005-E-09221 (7 August 2002) --- Cosmonaut Sergei Y. Treschev (left) and astronaut Peggy A. Whitson, both Expedition Five flight engineers, perform maintenance on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module on the International Space Station (ISS). Treschev represents Rosaviakosmos.

STS112-E-05158 (11 October 2002) --- Astronauts Peggy A. Whitson (left), Expedition Five flight engineer; Sandra H. Magnus, STS-112 mission specialist, and Pamela A. Melroy, STS-112 pilot, pose for a photo in the Zvezda Service Module on the International Space Station (ISS).

Expedition 16 Flight Engineer and Soyuz Commander Yuri Malenchenko, second from left, and Expedition 16 Commander Peggy Whitson meet with Russian officials at the foot of the airplane steps after they arrived at Chkalovsky Airport near Star City, Russia, Friday, April 19, 2008. Whitson, Malechenko and Yi landed their Soyuz TMA-11 spacecraft on April 19, 2008 in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

Expedition 16 Commander Peggy Whitson, bottom, South Korean spaceflight participant So-yeon Yi and Flight Engineer and Soyuz Commander Yuri Malenchenko, top, walk down the airplane steps as they arrive at Chkalovsky Airport near Star City, Russia, Friday, April 19, 2008. Whitson, Malechenko and Yi landed their Soyuz TMA-11 spacecraft on April 19, 2008 in central Kazakhstan to complete 192 days in space for Whitson and Malenchenko and 11 days in orbit for Yi. Photo Credit: (NASA/Bill Ingalls)

iss050e053302 (Feb. 28, 2017) --- Peggy Whitson, Expedition 50 Flight Engineer, works on an experiment inside the Microgravity Science Glovebox inside the U.S. Destiny laboratory module.

ISS016-E-024789 (18 Jan. 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, prepares to retrieve a sleep restraint device from a stowage location on the Earth-orbiting International Space Station.

S122-E-007035 (9 Feb. 2008) --- Astronaut Alan Poindexter, STS-122 pilot, greets astronaut Peggy Whitson, Expedition 16 commander, as the Atlantis crew joined the ISS crewmembers onboard the orbiting outpost.

ISS016-E-021064 (5 Jan. 2008) --- Astronaut Peggy A. Whitson, Expedition 16 commander, works at the Microgravity Science Glovebox (MSG) in the Destiny laboratory of the International Space Station.

ISS005-E-19055 (29 October 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, inserts an experiment cartridge in the autoclave for the Zeolite Crystal Growth (ZCG) experiment in Destiny laboratory on the International Space Station (ISS).

ISS016-E-021059 (5 Jan. 2008) --- Astronaut Peggy A. Whitson, Expedition 16 commander, works at the Microgravity Science Glovebox (MSG) in the Destiny laboratory of the International Space Station.

ISS016-E-021067 (5 Jan. 2008) --- Astronaut Peggy A. Whitson, Expedition 16 commander, works at the Microgravity Science Glovebox (MSG) in the Destiny laboratory of the International Space Station.

ISS016-E-021060 (5 Jan. 2008) --- Astronaut Peggy A. Whitson, Expedition 16 commander, works at the Microgravity Science Glovebox (MSG) in the Destiny laboratory of the International Space Station.

ISS016-E-021075 (5 Jan. 2008) --- Astronaut Peggy A. Whitson, Expedition 16 commander, works at the Microgravity Science Glovebox (MSG) in the Destiny laboratory of the International Space Station.

ISS016-E-036373 (17 April 2008) --- Russian Federal Space Agency cosmonaut Sergei Volkov, Expedition 17 commander; and NASA astronaut Peggy Whitson, Expedition 16 commander, pose for a photo with their mission patches in the Destiny laboratory of the International Space Station during the ceremony of Changing-of-Command from Expedition 16 to Expedition 17.

S122-E-007662 (10 Feb. 2008) --- Astronauts Peggy Whitson, Expedition 16 commander; Stanley Love and Rex Walheim (bottom), both STS-122 mission specialists, work in the Quest Airlock of the International Space Station while Space Shuttle Atlantis is docked with the station. Two Extravehicular Mobility Unit (EMU) spacesuits are visible in the image.

S120-E-008853 (4 Nov. 2007) --- Astronauts Peggy Whitson (left), Expedition 16 commander, and Pam Melroy, STS-120 commander, exchange handshakes in the Pressurized Mating Adapter (PMA-2) of the International Space Station as the STS-120 crewmembers exit the station to board Space Shuttle Discovery for their return trip home. Hatches were closed between the station and the shuttle at 2:03 p.m. (CST) on Nov. 4.

S122-E-009094 (15 Feb. 2008) --- Commanders of the STS-122 Atlantis crew and the International Space Station's expedition, respectively, astronauts Steve Frick and Peggy Whitson, assist astronaut Rex Walheim as he ingresses the station following the third and final extravehicular activity during a week in which the Atlantis was docked to the orbital outpost. Astronaut Stanley Love (out of frame), mission specialist, shared this extravehicular activity with Walheim.

S120-E-008866 (4 Nov. 2007) --- Astronaut Pam Melroy (left), STS-120 commander, and Peggy Whitson, Expedition 16 commander, pose for a photo in the Pressurized Mating Adapter (PMA-2) of the International Space Station as the STS-120 crewmembers exit the station to board Space Shuttle Discovery for their return trip home. Hatches were closed between the station and the shuttle at 2:03 p.m. (CST) on Nov. 4.

S122-E-009101 (15 Feb. 2008) --- Astronaut Alan Poindexter, STS-122 pilot, inspects the gloves of astronaut Rex Walheim, mission specialist, following the ingress of astronauts Walheim and Stanley Love (partially out of frame at left) following the final space walk of a busy week. Astronaut Peggy Whitson, the International Space Station's Expedition 16 commander, checks Love's gloves.

S120-E-008852 (4 Nov. 2007) --- Astronauts Peggy Whitson (left), Expedition 16 commander, and Pam Melroy, STS-120 commander, exchange handshakes in the Pressurized Mating Adapter (PMA-2) of the International Space Station as the STS-120 crewmembers exit the station to board Space Shuttle Discovery for their return trip home. Hatches were closed between the station and the shuttle at 2:03 p.m. (CST) on Nov. 4.

S122-E-008297 (13 Feb. 2008) --- Attired in their Extravehicular Mobility Unit (EMU) spacesuits, European Space Agency (ESA) astronaut Hans Schlegel (left) and NASA astronaut Rex Walheim, both STS-122 mission specialists, are pictured in the Quest Airlock of the International Space Station as the mission's second spacewalk draws to a close. NASA astronaut Peggy Whitson, Expedition 16 commander, assisted Schlegel and Walheim.

S122-E-009090 (15 Feb. 2008) --- Commanders of the STS-122 Atlantis crew and the International Space Station's expedition, respectively, astronauts Steve Frick and Peggy Whitson, give a tip of the hat to the STS-122 spacewalk team of astronauts Stanley Love and Rex Walheim, who shortly afterward ingressed the station at the completion of the mission's final spacewalk.

S120-E-006955 (27 Oct. 2007) --- Astronaut Peggy A. Whitson (left), Expedition 16 commander, and Pam Melroy, STS-120 commander, take a moment for a photo in the Unity node of the International Space Station while Space Shuttle Discovery is docked with the station. The joint mission of the two marks the first time both spacecraft have been commanded by females simultaneously.

NASA Astronaut Peggy Whitson plants a tree during a ceremony where she and Russian Cosmonauts Gennady Padalka, and Valery Korzun were recognized for their achievements in space flight on Thursday, Sept. 23, 2010 in Jhezkazgan, Kazakhstan. Padalka, Whitson, and Korzun were in Jhezkazgan in preparation for the Expedition 24 Soyuz TMA-18 spacecraft landing. Photo Credit: (NASA/Bill Ingalls)

Russian Cosmonaut Gennady Padalka, left, NASA Astronaut Peggy Whitson, center, and Russian Cosmonaut Valery Korzun are seen in traditional Kazakh dress during a ceremony where they were recognized for their achievements in space flight on Thursday, Sept. 23, 2010 in Jhezkazgan, Kazakhstan. Padalka, Whitson, and Korzun were in Jhezkazgan in preparation for the Expedition 24 Soyuz TMA-18 spacecraft landing. Photo Credit: (NASA/Bill Ingalls)

NASA Astronaut Peggy Whitson poses for a photograph being taken by Russian Cosmonaut Valery Korzun during a ceremony where the two and Russian Cosmonaut Gennady Padalka were recognized for their achievements in space flight on Thursday, Sept. 23, 2010 in Jhezkazgan, Kazakhstan. Padalka, Whitson, and Korzun were in Jhezkazgan in preparation for the Expedition 24 Soyuz TMA-18 spacecraft landing. Photo Credit: (NASA/Bill Ingalls)

A Kazakh singer performs during a ceremony in which NASA Astronaut Peggy Whitson, and Russian Cosmonauts Valery Korzun and Gennady Padalka were recognized for their achievements in space flight on Thursday, Sept. 23, 2010 in Jhezkazgan, Kazakhstan. Whitson, Korzun and Padalka were in Jhezkazgan in preparation for the Expedition 24 Soyuz TMA-18 spacecraft landing. Photo Credit: (NASA/Bill Ingalls)

Expedition 16 Commander Peggy Whitson dons her flight suit prior to launch, Wednesday, Oct. 10, 2007, in Baikonur, Kazakhstan. Expedition 16 Flight Engineer and Soyuz Commander Yuri Malenchenko, Whitson, and Malaysian spaceflight participant Sheikh Muszaphar Shukor launched from the Baikonur Cosmodrome in Kazakhstan at sunset n their Soyuz TMA-11 spacecraft bound for a docking to the International Space Station on Oct. 12. Whitson and Malenchenko will spend six months on the station, while Shukor will return to Earth Oct. 21 with two of the Expedition 15 crewmembers currently on the complex. Photo Credit: (NASA/Bill Ingalls)

Expedition 16 Commander Peggy Whitson dons her flight suit prior to launch, Wednesday, Oct. 10, 2007, in Baikonur, Kazakhstan. Expedition 16 Flight Engineer and Soyuz Commander Yuri Malenchenko, Whitson, and Malaysian spaceflight participant Sheikh Muszaphar Shukor launched from the Baikonur Cosmodrome in Kazakhstan at sunset n their Soyuz TMA-11 spacecraft bound for a docking to the International Space Station on Oct. 12. Whitson and Malenchenko will spend six months on the station, while Shukor will return to Earth Oct. 21 with two of the Expedition 15 crewmembers currently on the complex. Photo Credit: (NASA/Bill Ingalls)

ISS005-E-15406 (23 September 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, works in the Destiny laboratory on the International Space Station (ISS).

ISS005-E-16538 (9 October 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, works in the Destiny laboratory on the International Space Station (ISS).

ISS005-E-07178 (9 July 2002) --- Astronaut Peggy A. Whitson, Expedition Five flight engineer, works in the Destiny laboratory on the International Space Station (ISS).

ISS015-E-34421 (12 Oct. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, and cosmonaut Yuri Malenchenko, flight engineer representing Russia's Federal Space Agency, are pictured during their first hours aboard the International Space Station talking with Russia's Federal Space Agency cosmonaut Fyodor Yurchikhin (partially visible at right), Expedition 15 commander. Whitson served a six-month tour of duty on the space station as flight engineer several years ago, and Malenchenko served a similar tour as commander of an earlier expedition

ISS005-E-17040 (10 October 2002) --- Astronauts Peggy A. Whitson (background), Expedition Five flight engineer, and Sandra H. Magnus, STS-112 mission specialist, work the controls of the Canadarm2 from inside the Destiny laboratory on the International Space Station (ISS). Whitson and Magnus used the station’s robotic arm to lift the Starboard One (S1) Truss out of the Atlantis’ payload bay and move it into position on the starboard end of the S0 (S-Zero) Truss.