NASA astronaut Megan McArthur poses for a portrait on the Crew Access Arm of the mobile launcher, Tuesday, June 25, 2019 inside the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Megan McArthur poses for a portrait on the Crew Access Arm of the mobile launcher, Tuesday, June 25, 2019 inside the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Megan McArthur and Randy Bresnik are seen inside the Vehicle Assembly Building, Tuesday, June 25, 2019 at NASA's Kennedy Space Center in Florida. Photo Credit: (NASA/Joel Kowsky)

JSC2000-07600 (November 2000) --- Astronaut K. Megan McArthur, Astronaut Candidate Class of 2000.

S125-E-011440 (18 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works on the middeck of the Earth-orbiting Space Shuttle Atlantis during flight day eight activities.

S91-49490 (24 Oct 1991) --- Astronaut William S. McArthur, mission specialist.

S62-02270 (1962) --- Astronaut John H. Glenn Jr. and wife visit with General Douglas McArthur in the Waldorf Astoria hotel. Photo credit: NASA

S93-38679 (20 July 1993) --- Wearing a training version of the partial pressure launch and entry garment, astronaut William S. McArthur listens to a briefing on emergency egress procedures for the STS-58 mission. McArthur, along with five other NASA astronauts and a visiting payload specialist assigned to the seven member crew, later rehearsed contingency evacuation procedures. Most of the training session took place in the crew compartment and full fuselage trainers of the Space Shuttle mockup and integration laboratory.

ISS012-E-20043 (9 March 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, sets up the electromyography (EMG) calibration cord assembly for a data collection session of the Foot/Ground Reaction Forces During Spaceflight (FOOT) experiment in the Destiny laboratory of the International Space Station. McArthur was attired in the specially instrumented Lower Extremity Monitoring Suit (LEMS), cycling tights outfitted with sensors for the experiment.

S93-38686 (20 July 1993) --- Wearing a training version of the partial pressure launch and entry garment, astronaut William S. McArthur prepares to rehearse emergency egress procedures for the STS-58 mission. McArthur, along with the five other NASA astronauts and a visiting payload specialist assigned to the seven-member crew, later simulated contingency evacuation procedures. Most of the training session took place in the crew compartment and full fuselage trainers of the Space Shuttle mockup and integration laboratory.

S125-E-011488 (18 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, rests in her sleeping bag, which is attached to the lockers on the middeck of the Earth-orbiting Space Shuttle Atlantis at the end of flight day eight.

ISS012-E-14206 (3 Jan. 2006) --- Astronaut William S. (Bill) McArthur Jr., Expedition 13 commander and NASA space station science officer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.

S125-E-011487 (18 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, rests in her sleeping bag, which is attached to the lockers on the middeck of the Earth-orbiting Space Shuttle Atlantis at the end of flight day eight.

S125-E-012531 (19 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works with stowage bags on the middeck of the Earth-orbiting Space Shuttle Atlantis during flight day nine activities.

S125-E-007993 (16 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, looks through an overhead window on the aft flight deck of Space Shuttle Atlantis during flight day six activities.

ISS011-E-14120 (5 October 2005) --- Astronaut William S. McArthur, Jr., Expedition 12 commander and NASA science officer, works with Space Station Remote Manipulator System or Canadarm2 controls located in the Destiny lab, while sharing duty time with the Expedition 11 crewmembers on the international space station. The Expedition 11 crew of cosmonaut Sergei K. Krikalev of Russia's Federal Space Agency, commander, and astronaut John L. Phillips, flight engineer and NASA science officer, along with spaceflight participant Greg Olsen, will be returning to Earth early next week.

S125-E-011889 (19 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, is pictured on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day nine activities. Astronaut Gregory C. Johnson (partially out of frame), STS-125 pilot, is at left.

ISS012-E-05937 (19 Oct. 2005) --- Astronaut William S. McArthur Jr., Expedition 12 commander and NASA science officer, equipped with a bungee harness, exercises on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module of the international space station.

S125-E-011888 (19 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, looks through a window on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day nine activities. Astronaut Gregory C. Johnson (partially out of frame), STS-125 pilot, is at left.

Expedition 12 Commander Bill McArthur rest onboard a Russian helicopter that will take him from the landing site to Kustanay, Kazakhstan. Expedition 12 returned to Earth and landed in the steppes of Kazakhstan onboard a Soyuz TMA-7 spacecraft that touched down at 7:48 p.m. EDT on Sunday, April 9, 2006. Returning with Commander Bill McArthur and Flight Engineer Valery Tokarev was Brazil’s first astronaut, Marcos Pontes, who arrived at the station with Expedition 13 on April 1. Photo Credit: (NASA/Bill Ingalls)

ISS012-E-05983 (23 Oct. 2005) --- Astronaut William S. McArthur Jr. (right), Expedition 12 commander and NASA science officer, dons his Extravehicular Mobility Unit (EMU) spacesuit in the Quest Airlock of the international space station. Cosmonaut Valery I. Tokarev, flight engineer representing Russia's Federal Space Agency, assisted McArthur. When the Expedition 12 crew performs its first scheduled day of spacewalking on Nov. 7, it will be attired in the NASA EMU.

ISS012-E-20020 (9 March 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, works with a portion of the Resistive Exercise Device (RED) in the Destiny laboratory of the International Space Station. In this view, McArthur replaced RED flex packs, which are external splines and spacers that were approaching the end of their certified life.

ISS012-E-14244 (28 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr. (right), Expedition 13 commander and NASA space station science officer, and cosmonaut Valery I. Tokarev, flight engineer representing Russia's Federal Space Agency, pose for a holiday photo in the Zvezda Service Module of the International Space Station. McArthur and Tokarev are holding Christmas stockings and wearing Santa Claus hats. A small Christmas tree and Santa Claus figurine sit on the gallery table in the foreground.

STS058-21-011 (24 Oct 1993) --- From the flight deck of the Earth-orbiting Space Shuttle Columbia, astronaut William S. McArthur talks to students on Earth. The mission specialist's activity was part of the Shuttle Amateur Radio Experiment (SAREX), a frequent payload on Shuttle missions which serves to enlighten students around the world on the topic of space travel. McArthur (call letters KC5ACR) is one of three licensed amateur radio operators on the seven-member flight.

S125-E-007385 (14 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, looks through a window while working controls on the aft flight deck of Space Shuttle Atlantis.

ISS012-E-22751 (24 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, floats through a hatch on the International Space Station.

S125-E-009956 (18 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, is pictured on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day eight activities.

ISS012-E-11488 (11 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, poses with Christmas decorations in the Destiny laboratory of the International Space Station.

JSC2005-E-18896 (12 May 2005) --- Astronaut William S. McArthur, Jr., Expedition 12 commander and NASA Space Station science officer; and cosmonaut Valery I. Tokarev (obscured), Station flight engineer representing Russia's Federal Space Agency, are submerged in the waters of the Neutral Buoyancy Laboratory (NBL) at Johnson Space Center (JSC). McArthur and Tokarev are wearing training versions of the Extravehicular Mobility Unit (EMU) space suit. SCUBA-equipped divers are in the water to assist the crewmembers in their rehearsal, intended to help prepare them for work on the exterior of the International Space Station.

S93-43840 (6 Sept 1993) --- Astronaut William S. McArthur, mission specialist, participates in training for contingency Extravehicular Activity (EVA) for the STS-58 mission. For simulation purposes, McArthur was about to be submerged to a point of neutral buoyancy in the Johnson Space Center's (JSC) Weightless Environment Training Facility (WET-F). Though the Spacelab Life Sciences (SLS-2) mission does not include a planned EVA, all crews designate members to learn proper procedures to perform outside the spacecraft in the event of failure of remote means to accomplish those tasks.

ISS012-E-19194 (5 March 2006) --- Astronaut William S. (Bill) McArthur (left), Expedition 12 commander and NASA space station science officer, and cosmonaut Valery I. Tokarev, flight engineer representing Russia's Federal Space Agency, pose with a U.S. Extravehicular Mobility Unit (EMU) spacesuit (left) and Russian Orlan spacesuit in the Destiny laboratory of the International Space Station.

ISS012-E-19203 (5 March 2006) --- Astronaut William S. (Bill) McArthur (left), Expedition 12 commander and NASA space station science officer, and cosmonaut Valery I. Tokarev, flight engineer representing Russia's Federal Space Agency, pose with a U.S. Extravehicular Mobility Unit (EMU) spacesuit (left) and Russian Orlan spacesuit in the Destiny laboratory of the International Space Station.

ISS012-E-10806 (9 December 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, rotates the Crew Health Care System (CHeCS) rack in order to access the Avionics Air Assembly (AAA) air ducts during in-flight maintenance (IFM) in the Destiny laboratory of the International Space Station.

iss065e335909 (Aug. 31, 2021) --- NASA astronaut and Expedition 65 Flight Engineer Megan McArthur installs the Faraday-2 facility inside the International Space Station's U.S. Destiny laboratory module. The payload gives the Girl Scouts on Earth the opportunity to conduct a control experiment while observing space station experiments on plant growth, ant colonization, and brine shrimp lifecycle aboard the orbiting lab.

iss065e335890 (Aug. 31, 2021) --- NASA astronaut and Expedition 65 Flight Engineer Megan McArthur installs the Faraday-2 facility inside the International Space Station's U.S. Destiny laboratory module. The payload gives the Girl Scouts on Earth the opportunity to conduct a control experiment while observing space station experiments on plant growth, ant colonization, and brine shrimp lifecycle aboard the orbiting lab.

ISS012-E-12570 (16 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, completes a battery charge on a cardiac defibrillator at the Human Research Facility (HRF) in the Destiny laboratory of the International Space Station.

ISS012-E-12909 (20 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, prepares the Capillary Flow Experiment (CFE) for video documentation. The CFE was positioned on the Maintenance Work Area in the Destiny laboratory of the International Space Station.

ISS012-E-15158 (15 Jan. 2006) --- Astronaut William S. (Bill) McArthur, Jr., Expedition 12 commander and NASA space station science officer, exercises on the Treadmill Vibration Isolation System (TVIS) in the Zvezda Service Module of the International Space Station.

ISS012-E-10233 (5 December 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, performs in-flight maintenance (IFM) on the Volatile Organic Analyzer (VOA) in the Destiny laboratory of the International Space Station.

ISS012-E-06030 (21 October 2005) --- Astronaut William S. McArthur Jr., Expedition 12 commander and NASA science officer, holds a Hand Control Module (HCM) while looking at laptop computer graphics during a Simplified Aid for EVA Rescue (SAFER) training session in the Unity node of the international space station.

S125-E-011510 (19 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works with lithium hydroxide (LiOH) canisters from beneath Space Shuttle Atlantis' middeck during flight day nine activities.

ISS012-E-22732 (24 Oct. 2005) --- Astronaut Williams S. (Bill) McArthur Jr. (right), Expedition 12 commander and NASA space station science officer, and cosmonaut Valery I. Tokarev, flight engineer representing Russia's Federal Space Agency, eat a meal in the Zvezda Service Module of the International Space Station.

ISS012-E-22572 (21 March 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, adds potable water to a soft beverage container at the galley in Zvezda Service Module of the International Space Station.

ISS012-E-10245 (5 December 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, performs in-flight maintenance (IFM) on the Volatile Organic Analyzer (VOA) in the Destiny laboratory of the International Space Station.

S125-E-011511 (19 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works with lithium hydroxide (LiOH) canisters from beneath Space Shuttle Atlantis' middeck during flight day nine activities.

ISS012-E-09931 (1 December 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, rotates the Crew Health Care System (CHeCS) rack back into position after cleaning the Avionics Air Assembly fan in the Destiny laboratory of the International Space Station.

ISS012-E-18278 (14 Feb. 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, works with a portion of the Treadmill Vibration Isolation System (TVIS) during in-flight maintenance (IFM) in the Zvezda Service Module of the International Space Station.

ISS012-E-06038 (31 October 2005) --- Astronaut William S. McArthur Jr., Expedition 12 commander and NASA science officer, conducts troubleshooting operations on the Trace Contaminant Control Subassembly (TCCS) in the Destiny laboratory of the international space station.

S125-E-011507 (19 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works with lithium hydroxide (LiOH) canisters from beneath Space Shuttle Atlantis' middeck during flight day nine activities.

S125-E-009947 (18 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works the controls of the remote manipulator system (RMS) on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day eight activities.

ISS012-E-07685 (11 Nov. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, photographs Binary Colloidal Alloy Test-3 (BCAT-3) experiment samples in the Destiny laboratory of the international space station.

S125-E-009948 (18 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works the controls of the remote manipulator system (RMS) on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day eight activities.

S125-E-011505 (19 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works with lithium hydroxide (LiOH) canisters from beneath Space Shuttle Atlantis' middeck during flight day nine activities.

ISS012-E-06035 (21 October 2005) --- Astronaut William S. McArthur Jr., Expedition 12 commander and NASA science officer, holds a Hand Control Module (HCM) while looking at laptop computer graphics during a Simplified Aid for EVA Rescue (SAFER) training session in the Unity node of the international space station.

S125-E-009958 (18 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, works the controls of the remote manipulator system (RMS) on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day eight activities.

Expedition 12 Commander Bill McArthur signs the interior of the Russian helicopter that will take him from the landing site to Kustanay, Kazakhstan. Expedition 12 returned to Earth and landed in the steppes of Kazakhstan onboard a Soyuz TMA-7 spacecraft that touched down at 7:48 p.m. EDT, Sunday, April 9, 2006. Returning with Commander Bill McArthur and Flight Engineer Valery Tokarev was Brazil’s first astronaut, Marcos Pontes, who arrived at the station with Expedition 13 on April 1. Photo Credit: (NASA/Bill Ingalls)

William S. McArthur Jr., Expedition 12 Commander and Space Station Science Officer, waves to some of the crowd on hand in the steppes of Kazakhstan to greet the three crewmembers returning to Earth from the International Space Station in the Soyuz TMA-7 spacecraft on Sunday, April 9, 2006. Returning with McArthur, Flight Engineer Valery Tokarev and Brazil’s first astronaut, Marcos Pontes, who arrived at the station with Expedition 13 on April 1. Photo Credit: (NASA/Bill Ingalls)

Astronaut William S. McArthur Jr., Expedition 12 commander and space station science officer, smiles as he experiences terra firma for the first time in six months following the touchdown of the Soyuz TMA-7 spacecraft in the steppes of Kazakhstan, Sunday, April 9, 2006. Brazilian astronaut Marcos Pontes and cosmonaut Valery I. Tokarev, Russias Federal Space Agency flight engineer and Soyuz commander joined McArthur for the return trip from the orbital outpost. Photo Credit: (NASA/Bill Ingalls)

The 2018 Marshall Space Flight Center Safety Day event was held in buildings 4200, 4315, and 4316. MSFC employees enjoyed safety related panel discussions, vendor exhibits, fire safety demonstrations, and fitness classes in the fitness building. Former NASA astronaut Bill McArthur discusses safety in the workplace during his address to Marshall team members Oct. 31. McArthur was the keynote speaker at Marshall's 2018 Safety Day.

Prince Philip, left, asks astronauts K. Megan McArthur, Commander Scott D. Altman and Gregory C. Johnson, pilot details about the STS-125 mission. Photo Credit: (NASA/Chris Gunn)

iss065e346115 (September 2, 2021) -- NASA astronaut and Expedition 65 Flight Engineer Megan McArthur poses with the crop of chile peppers being grown as part of the Plant Habitat-04 investigation inside the Advanced Plant Habitat (APH) aboard the International Space Station. This is the first time chile peppers are being grown aboard the orbiting laboratory, and are one of the most complex plant experiments on the station to date because of the long germination and growing times. The pepper seeds were activated on July 12. 2021 and will grow for about four months, during which time they will be harvested twice. Astronauts will sample some of the peppers and return the rest to Earth for scientific analysis.

Expedition 12 Commander and International Space Station Science Officer, Bill McArthur waits onboard a helicopter before transferring to an airplane and a flight back to Moscow from Kustanay, Kazakhstan. Expedition 12 returned to Earth and landed in the steppes of Kazakhstan. The Soyuz TMA-7 spacecraft touched down at 7:48 p.m. EDT, Sunday, April 9, 2006. Returning with Commander Bill McArthur were Flight Engineer Valery Tokarev and Brazil’s first astronaut, Marcos Pontes, who arrived at the station with Expedition 13 on April 1. Photo Credit: (NASA/Bill Ingalls)

Astronauts from the STS-125 mission to repair the Hubble Space Telescope shared accounts of their mission today at StenniSphere. The crewmembers-Commander Scott Altman, Pilot Greg Johnson and Mission Specialists Megan McArthur, Michael Good, Drew Feustel and Mike Massimino-thanked Stennis employees for their contributions to the success of the mission and presented a plaque to Marina Benigno, director of center operations. Pictured are (l to r) Massimino, Good, Feustel, Altman, McArthur and Johnson.

1990 Group 13 Astronaut Candidates (ASCANs) (left to right) Bernard J. Harris, Jr, Susan J. Helms, and William S. McArthur, Jr open dehydrated food packages during wilderness survival training at Fairchild Air Force Base (AFB) in Spokane, Washington. The training was conducted in the mountain forests of Washington from 08-26-90 through 08-30-90.

ISS012-E-12641 (16 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, stows the Space Linear Acceleration Mass Measurement Device (SLAMMD) hardware after conducting test operations. SLAMMD hardware was stowed in a stowage drawer on the Human Research Facility (HRF) rack in the Destiny laboratory of the International Space Station.

ISS012-E-12629 (16 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, sets up the calibration arm on the Space Linear Acceleration Mass Measurement Device (SLAMMD) attached to the Human Research Facility (HRF) rack in the Destiny laboratory of the International Space Station.

ISS012-E-14529 (10 Jan. 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, performs Foot/Ground Reaction Forces During Spaceflight (FOOT) experiment set-up operations in the Destiny laboratory of the International Space Station. Foot Ground Interface Flight Calibration Unit (FGI-FCU) is visible upper right and the Lower Extremity Monitoring Suit (LEMS) is visible in the foreground.

ISS012-E-14993 (12 Jan. 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, maneuvers the Space Station Remote Manipulator System (SSRMS) or Canadarm2 during a video inspection of the Mobile Transporter (MT) Interface Umbilical Assembly 1 (IUA) using the Dynamic Onboard Ubiquitous Graphics (DOUG) software in the Destiny laboratory of the International Space Station.

ISS012-E-15167 (13 Jan. 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, maneuvers the Space Station Remote Manipulator System (SSRMS) or Canadarm2 in the Destiny laboratory of the International Space Station during a survey of the Unity node Nadir Active Common Berthing Mechanism (ACBM) to look for possible debris or damage on the sealing surface.

ISS012-E-14518 (10 Jan. 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, talks to Mission Control Center while holding the Total Force Foot Ground Interface (TF-FGI) during Foot/Ground Reaction Forces During Spaceflight (FOOT) experiment set-up operations in the Destiny laboratory of the International Space Station. The Foot Ground Interface Flight Calibration Unit (FGI-GCU) is visible at right.

ISS012-E-06011 (23 Oct. 2005) --- Cosmonaut Valery I. Tokarev (left), Expedition 12 flight engineer representing Russia's Federal Space Agency, dons his Extravehicular Mobility Unit (EMU) spacesuit in the Quest Airlock of the international space station. Astronaut William S. McArthur Jr., commander and NASA science officer, assisted Tokarev. When the Expedition 12 crew performs its first scheduled day of spacewalking on Nov. 7, it will be attired in the NASA EMU.

ISS012-E-06020 (26 October 2005) --- Astronaut William S. McArthur Jr., Expedition 12 commander and NASA science officer, works with Extravehicular Mobility Unit (EMU) spacesuits in the Quest airlock of the international space station. When the Expedition 12 crew performs its first scheduled day of spacewalking on Nov. 7, it will be attired in the NASA EMU.

ISS012-E-06022 (26 Oct. 2005) --- Astronaut William S. McArthur Jr., Expedition 12 commander and NASA science officer, works with Extravehicular Mobility Unit (EMU) spacesuits in the Quest airlock of the international space station. When the Expedition 12 crew performs its first scheduled day of spacewalking on Nov. 7, it will be attired in the NASA EMU.

ISS012-E-21181 (21 March 2006) --- Astronaut William S. McArthur Jr., Expedition 12 commander and NASA science officer, talks on the ARISS (Amateur Radio on the International Space Station) inside the Zarya Functional Cargo Block during his scheduled amateur radio session. This session is with the Sir James Lougheed Elementary School, Calgary, Alberta, Canada.

ISS012-E-06006 (23 October 2005) --- Cosmonaut Valery I. Tokarev (left), Expedition 12 flight engineer representing Russia's Federal Space Agency, dons his Extravehicular Mobility Unit (EMU) spacesuit in the Quest Airlock of the international space station. Astronaut William S. McArthur Jr., commander and NASA science officer, assisted Tokarev. When the Expedition 12 crew performs its first scheduled day of spacewalking on Nov. 7, it will be attired in the NASA EMU.

ISS012-E-15190 (13 Jan. 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, maneuvers the Space Station Remote Manipulator System (SSRMS) or Canadarm2 in the Destiny laboratory of the International Space Station during a survey of the Unity node Nadir Active Common Berthing Mechanism (ACBM) to look for possible debris or damage on the sealing surface.

ISS012-E-06012 (23 October 2005) --- Cosmonaut Valery I. Tokarev (left), Expedition 12 flight engineer representing Russia's Federal Space Agency, dons his Extravehicular Mobility Unit (EMU) spacesuit in the Quest Airlock of the international space station. Astronaut William S. McArthur Jr., commander and NASA science officer, assisted Tokarev. When the Expedition 12 crew performs its first scheduled day of spacewalking on Nov. 7, it will be attired in the NASA EMU.

ISS012-E-17025 (23 Jan. 2006) --- Cosmonaut Valery I. Tokarev (left), Expedition 12 flight engineer representing Russia's Federal Space Agency, and astronaut William S. (Bill) McArthur, commander and NASA space station science officer, unpack the Radioskaf (SuitSat) package sent up on a Progress spacecraft. It contained instructions and a compact disk that included items such as artwork and photos from different schools.

ISS012-E-12577 (16 Dec. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, sets up the Space Linear Acceleration Mass Measurement Device (SLAMMD) hardware attached to the Human Research Facility (HRF) rack in the Destiny laboratory of the International Space Station.

NASA’s SpaceX Crew-2 NASA astronaut Megan McArthur speaks to students during a visit to Arlington Science Focus Elementary School, Friday, June 10, 2022, in Arlington, Virginia. Photo Credit: (NASA/Aubrey Gemignani)

NASA’s SpaceX Crew-2 NASA astronaut Megan McArthur speaks to students during a visit to Arlington Science Focus Elementary School, Friday, June 10, 2022, in Arlington, Virginia. Photo Credit: (NASA/Aubrey Gemignani)

NASA’s SpaceX Crew-2 NASA astronaut Megan McArthur speaks to students during a visit to Arlington Science Focus Elementary School, Friday, June 10, 2022, in Arlington, Virginia. Photo Credit: (NASA/Aubrey Gemignani)

NASA’s SpaceX Crew-2 NASA astronaut Megan McArthur speaks to students during a visit to Arlington Science Focus Elementary School, Friday, June 10, 2022, in Arlington, Virginia. Photo Credit: (NASA/Aubrey Gemignani)

ISS012-E-10207 (5 December 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, performs in-flight maintenance (IFM) on the Volatile Organic Analyzer (VOA) in the Destiny laboratory of the International Space Station.

S125-E-009184 (17 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, uses a still camera at a window on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day seven activities.

ISS012-E-24257 (8 April 2006) --- Astronaut William S. (Bill) McArthur, Expedition 12 commander and NASA space station science officer, floats in the Zvezda Service Module of the International Space Station prior to his departure in a Soyuz TMA-7 spacecraft. A Russian Sokol spacesuit floats nearby.

ISS012-E-09763 (30 Nov. 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, performs preventive maintenance and cleaning of the Russian segment SOTR ventilation systems in the Zvezda Service Module of the international space station.

ISS012-E-09767 (30 November 2005) --- Astronaut William S. (Bill) McArthur Jr., Expedition 12 commander and NASA space station science officer, performs preventive maintenance and cleaning of the Russian segment SOTR ventilation systems in the Zvezda Service Module of the international space station.

JSC2005-E-36545 (26 August 2005) --- Astronaut William S. McArthur, Jr., Expedition 12 commander and NASA Space Station science officer, attired in a Russian Sokol suit, pauses from a busy training schedule in Star City, Russia to pose for a portrait.

NASA’s SpaceX Crew-2 astronauts Shane Kimbrough, left, and Megan McArthur, right, speak during a meet and greet with employees Tuesday, June 7, 2022, at the Mary W. Jackson NASA Headquarters Building in Washington. Kimbrough, McArthur, Hoshide, and Pesquet completed the second crew rotation mission to the International Space Station as part of the agency’s Commercial Crew Program and spent 198 days aboard the orbiting laboratory as part of Expeditions 65 and 66. Photo Credit: (NASA/Keegan Barber)

NASA’s SpaceX Crew-2 astronauts Shane Kimbrough, left, and Megan McArthur, right, speak during a meet and greet with employees Tuesday, June 7, 2022, at the Mary W. Jackson NASA Headquarters Building in Washington. Kimbrough, McArthur, Hoshide, and Pesquet completed the second crew rotation mission to the International Space Station as part of the agency’s Commercial Crew Program and spent 198 days aboard the orbiting laboratory as part of Expeditions 65 and 66. Photo Credit: (NASA/Keegan Barber)

NASA’s SpaceX Crew-2 astronaut Megan McArthur speaks during a meeting with National Geographic leadership and staff Tuesday, June 7, 2022, at National Geographic Headquarters in Washington. Photo Credit: (Kimbrough, McArthur, Hoshide, and Pesquet completed the second crew rotation mission to the International Space Station as part of the agency’s Commercial Crew Program and spent 198 days aboard the orbiting laboratory as part of Expeditions 65 and 66. Photo Credit: (NASA/Keegan Barber)

NASA’s SpaceX Crew-2 astronauts Shane Kimbrough, left, and Megan McArthur, right, speak during a meet and greet with employees Tuesday, June 7, 2022, at the Mary W. Jackson NASA Headquarters Building in Washington. Kimbrough, McArthur, Hoshide, and Pesquet completed the second crew rotation mission to the International Space Station as part of the agency’s Commercial Crew Program and spent 198 days aboard the orbiting laboratory as part of Expeditions 65 and 66. Photo Credit: (NASA/Keegan Barber)

NASA’s SpaceX Crew-2 astronauts Shane Kimbrough, left, and Megan McArthur, right, speak during a meet and greet with employees Tuesday, June 7, 2022, at the Mary W. Jackson NASA Headquarters Building in Washington. Kimbrough, McArthur, Hoshide, and Pesquet completed the second crew rotation mission to the International Space Station as part of the agency’s Commercial Crew Program and spent 198 days aboard the orbiting laboratory as part of Expeditions 65 and 66. Photo Credit: (NASA/Keegan Barber)

NASA’s SpaceX Crew-2 astronauts Shane Kimbrough, left, and Megan McArthur, right, speak during a meet and greet with employees Tuesday, June 7, 2022, at the Mary W. Jackson NASA Headquarters Building in Washington. Kimbrough, McArthur, Hoshide, and Pesquet completed the second crew rotation mission to the International Space Station as part of the agency’s Commercial Crew Program and spent 198 days aboard the orbiting laboratory as part of Expeditions 65 and 66. Photo Credit: (NASA/Keegan Barber)

NASA’s SpaceX Crew-2 astronauts Shane Kimbrough, left, and Megan McArthur, right, speak during a meet and greet with employees Tuesday, June 7, 2022, at the Mary W. Jackson NASA Headquarters Building in Washington. Kimbrough, McArthur, Hoshide, and Pesquet completed the second crew rotation mission to the International Space Station as part of the agency’s Commercial Crew Program and spent 198 days aboard the orbiting laboratory as part of Expeditions 65 and 66. Photo Credit: (NASA/Keegan Barber)

S125-E-007727 (15 May 2009) --- Astronaut Megan McArthur, STS-125 mission specialist, focuses on chores in support of the Atlantis' second session of extravehicular activity from the aft side of the crew cabin, where controls for the remote manipulator system arm, among other important elements, are located. Equipped with TV monitors and direct vision capabilities, via this vantage point she also can maintain visual contact with the two space walkers as they perform work on the Hubble Space Telescope, locked down in the shuttle's cargo bay.

JSC2003-E-59139 (15 October 2003) --- Astronauts C. Michael Foale (right) and William S. (Bill) McArthur, Jr., prime and backup Expedition 8 mission commander and NASA ISS science officer, respectively, practice procedures with a satellite phone during final training at their crew quarters in Baikonur, Kazakhstan. Expedition 8 is scheduled to launch from the Baikonur Cosmodrome on October 18 onboard a Soyuz rocket to the International Space Station (ISS). Foale will be joined for launch by cosmonaut Alexander Y. Kaleri, Soyuz commander and flight engineer, and European Space Agency (ESA) astronaut Pedro Duque of Spain. Photo Credit: NASA/Bill Ingalls

NASA’s SpaceX Crew-2 NASA astronaut Megan McArthur speaks to students during a visit to Arlington Science Focus Elementary School, Friday, June 10, 2022, in Arlington, Virginia. Photo Credit: (NASA/Aubrey Gemignani)

CAPE CANAVERAL, Fla. -- NASA astronaut Megan McArthur, right, takes part in a crew equipment interface test CEIT in order to become familiar with the Space Exploration Technologies Corp. SpaceX Dragon capsule prior to its scheduled April 30 liftoff. The interface test inside a processing hangar at Cape Canaveral Air Force Station's Space Launch Complex-40 was part of prelaunch preparations for the company's next demonstration test flight for NASA's Commercial Orbital Transportation Services COTS program. Under COTS, NASA has partnered with two private companies to launch cargo safely to the International Space Station. Jason Tenenbaum, with SpaceX Mission Operations, left, also takes part in the test. CEIT is an activity that dates back to NASA's Space Shuttle Program, providing astronauts on Earth an opportunity to work with the actual hardware they would use in space. This exercise gave astronauts and engineers the opportunity to assess the compatibility of the equipment and systems aboard Dragon with the procedures to be used by the flight crew and flight controllers once the capsule is berthed at the space station. For more information, visit www.nasa.gov/exploration/commercial/cargo/spacex_index.html. Image courtesy: SpaceX/Paul Bonness