S125-E-012329 (19 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, is pictured on the middeck of the Earth-orbiting Space Shuttle Atlantis during flight day nine activities.

S125-E-012196 (19 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, works on the middeck of the Earth-orbiting Space Shuttle Atlantis during flight day nine activities.

S125-E-012743 (20 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, works on the middeck of the Earth-orbiting Space Shuttle Atlantis during flight day 10 activities.

iss055e024523 (Apr. 18, 2018) --- NASA astronaut Andrew Feustel is seen in the Cupola, holding sample bags of crystals grown under experimental conditions controlled by middle and high school students as part of the CASIS PCG-9 investigation

NASA AStronaut and STS-125 Mission Specialist Andrew Feustel, right, answers a question during a presentation with fellow STS-125 shuttle mission crew members at the NASA Tweetup event held at NASA Headquarters, July 21, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (Carla Cioffi)

S125-E-009515 (17 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, works on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day seven activities.

Members of the crew of STS-125, from left, Mission Specialists Andrew Feustel, Michael Good, Commander Scott Altman and Mission Specialist John Grunsfeld share a laugh with about the STS-125 mission to the Hubble Space Telescope during a visit by the crew to the Embassy of Italy in Washington, Thursday, July 23, 2009. Photo Credit: (NASA/Bill Ingalls)

S125-E-009514 (17 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, looks through a window on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day seven activities.

Prince Philip greets astronauts from STS-125 L to R Andrew J Feustel, Michael T Goode, K. Megan McArthur, Michael J. Massimino, Gregory C. Johnson, and Commander Scott D. Altman. Photo Credit: (NASA/Chris Gunn)

Vice President Mike Pence and NASA Administrator Jim Bridenstine talk with NASA astronauts Andrew Feustel, Scott Tingle, and Ricky Arnold who are onboard the International Space Station, Monday, April 23, 2018 at NASA Headquarters in Washington. Bridenstine was just sworn in by the Vice President as NASA's 13th Administrator. Photo Credit: (NASA/Joel Kowsky)

Vice President Mike Pence, and NASA Administrator Jim Bridenstine talk with NASA astronauts Scott Tingle, Andrew Feustel, and Ricky Arnold who are onboard the International Space Station, Monday, April 23, 2018 at NASA Headquarters in Washington. Bridenstine was just sworn in by the Vice President as NASA's 13th Administrator. Photo Credit: (NASA/Bill Ingalls)

STS-125 Mission Specialist Andrew Feustel, right, shows a part from the Hubble Space Telescope to retired astronaut Loren Shriver, who flew on the Hubble deployment mission STS-31 in 1990, following a press conference, Wednesday, Sept. 9, 2009, after astronomers declared the telescope a fully rejuvenated observatory with the release Wednesday of observations from four of its six operating science instruments at NASA Headquarters in Washington. Photo Credit: (NASA/Paul E. Alers)

Vice President Mike Pence and NASA Administrator Jim Bridenstine talk with NASA astronauts Andrew Feustel, Scott Tingle, and Ricky Arnold who are onboard the International Space Station, Monday, April 23, 2018 at NASA Headquarters in Washington. Bridenstine was just sworn in by the Vice President as NASA's 13th Administrator. Photo Credit: (NASA/Joel Kowsky)

Vice President Mike Pence and NASA Administrator Jim Bridenstine talk with NASA astronauts Andrew Feustel, Scott Tingle, and Ricky Arnold who are onboard the International Space Station, Monday, April 23, 2018 at NASA Headquarters in Washington. Bridenstine was just sworn in by the Vice President as NASA's 13th Administrator. Photo Credit: (NASA/Joel Kowsky)

Vice President Mike Pence, and NASA Administrator Jim Bridenstine, right, talk with NASA astronauts Scott Tingle, Andrew Feustel, and Ricky Arnold who are onboard the International Space Station, Monday, April 23, 2018 at NASA Headquarters in Washington. Bridenstine was just sworn in by the Vice President as NASA's 13th Administrator. Photo Credit: (NASA/Bill Ingalls)

Italian Ambassador Giovanni Castellaneta, second from left, is presented with a montage by STS-125 Mission Specialist Mike Massimino, second from right, during a visit by the crew of STS-125 to the Embassy of Italy in Washington, Thursday, July 23, 2009. Other crew members, from left are Mission Specialists, Michael Good, Megan McArthur, John Grunsfeld, Commander Scott Altman and Andrew Feustel, far right. Photo Credit: (NASA/Bill Ingalls)

Jen Rae Wang, NASA Associate Administrator for NASA’s Office of Communications, left, NASA Administrator Jim Bridenstine, and Vice President Mike Pence, talk with NASA astronauts Scott Tingle, Andrew Feustel, and Ricky Arnold who are onboard the International Space Station, Monday, April 23, 2018 at NASA Headquarters in Washington. Bridenstine was just sworn in by the Vice President as NASA's 13th Administrator. Photo Credit: (NASA/Joel Kowsky)

STS-125 shuttle mission crew members, from left, Scott Altman, Gregory Johnson, Megan McArthur, Andrew Feustel, John Grunsfeld, Michael Good and Michael Massimino, give a presentation at the NASA Tweetup event held at NASA Headquarters, July 21, 2009 in Washington. Nearly 200 of NASA's Twitter followers are in attendance, which featured a presentation and a question and answer session with the crew of the STS-125 shuttle mission to repair the Hubble Space Telescope. Photo Credit: (Carla Cioffi)

STS-134 crew members, Commander Mark Kelly, Mission Specialists Greg Chamitoff, Andrew Feustel, Pilot Greg H. Johnson, Mission Specialist Mike Fincke and European Space Agency astronaut Roberto Vittori wave following their arrival to Kennedy Space Center, Tuesday, April 26, 2011, in Cape Canaveral, Fla. The six astronauts for space shuttle Endeavour's STS-134 mission to the International Space Station arrived at Kennedy's Shuttle Landing Facility (SLF) in T-38 jets early Tuesday afternoon. Photo Credit: (NASA/Bill Ingalls)

STS-134 Commander Mark Kelly, center, along with his crew speaks to the media following their arrival to Kennedy Space Center, Tuesday, April 26, 2011, in Cape Canaveral, Fla. From left are Mission Specialists Greg Chamitoff, Andrew Feustel, Kelly, Pilot Greg H. Johnson, Mission Specialist Mike Fincke and European Space Agency astronaut Roberto Vittori. The six astronauts for space shuttle Endeavour's STS-134 mission to the International Space Station arrived at Kennedy's Shuttle Landing Facility (SLF) in T-38 jets early Tuesday afternoon. Photo Credit: (NASA/Bill Ingalls)

STS-134 Commander Mark Kelly, center, along with his crew pose for a photograph following their arrival to Kennedy Space Center, Tuesday, April 26, 2011, in Cape Canaveral, Fla. From left are Mission Specialists Greg Chamitoff, Andrew Feustel, Kelly, Pilot Greg H. Johnson, Mission Specialist Mike Fincke and European Space Agency astronaut Roberto Vittori. The six astronauts for space shuttle Endeavour's STS-134 mission to the International Space Station arrived at Kennedy's Shuttle Landing Facility (SLF) in T-38 jets early Tuesday afternoon. Photo Credit: (NASA/Bill Ingalls)

STS-125 crew members from left, Commander Scott Altman, Pilot Gregory Johnson, Mission Specialist Michael Good, Mission Specialist Megan McArthur, Mission Specialist John Grunsfeld, Mission Specialist Michael Massimino and Mission Specialist Andrew Feustel, are seen during a press conference, Wednesday, Sept. 9, 2009, after astronomers declared the NASA's Hubble Space Telescope a fully rejuvenated observatory with the release Wednesday of observations from four of its six operating science instruments at NASA Headquarters in Washington. Photo Credit: (NASA/Paul E. Alers)

STS-134 Commander Mark Kelly, center, along with his crew speaks to the media following their arrival to Kennedy Space Center, Tuesday, April 26, 2011, in Cape Canaveral, Fla. From left are Mission Specialists Greg Chamitoff, Andrew Feustel, Kelly, Pilot Greg H. Johnson, Mission Specialist Mike Fincke and European Space Agency astronaut Roberto Vittori. The six astronauts for space shuttle Endeavour's STS-134 mission to the International Space Station arrived at Kennedy's Shuttle Landing Facility (SLF) in T-38 jets early Tuesday afternoon. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama and First Lady Michelle Obama meet with STS-134 space shuttle Endeavor commander Mark Kelly, right, and shuttle astronauts, from left, Andrew Feustel, European Space Agency’s Roberto Vittori, Michael Fincke, Gregory H. Johnson, and Greg Chamitoff, after their launch was scrubbed, Friday, April 29, 2011, at Kennedy Space Center in Cape Canaveral, Fla. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama and First Lady Michelle Obama meet with STS-134 space shuttle Endeavor commander Mark Kelly, right, and shuttle astronauts, from left, Andrew Feustel, European Space Agency’s Roberto Vittori, Michael Fincke, Gregory H. Johnson, and Greg Chamitoff, after their launch was scrubbed, Friday, April 29, 2011, at Kennedy Space Center in Cape Canaveral, Fla. Photo Credit: (NASA/Bill Ingalls)

Jazz pianist and singer Diana Krall holds a montage given to her by the STS-125 space shuttle crew along with Apollo 11 Astronaut Neil Armstrong at the Apollo 40th anniversary celebration held at the National Air and Space Museum, Monday, July 20, 2009 in Washington. From left, Michael J. Massimino, Michael T. Good, Gregory C. Johnson, Andrew J. Feustel, Krall, Scott D. Altman, Neil Armstrong, John M. Grunsfeld and Megan McArthur. Photo Credit: (NASA/Bill Ingalls)

JOHNSON SPACE CENTER, Houston, Texas --- JSC2008-E-010318 -- Astronaut Andrew J. Feustel, mission specialist

JSC2008-E-010318 (6 Feb. 2008) --- NASA astronaut Andrew J. Feustel, mission specialist. Photo credit: NASA or National Aeronautics and Space Administration

ISS027-E-035296(20 May 2011) --- NASA astronaut Andrew Feustel, mission specialist, ingresses the airlock hatch on the International Space Station (ISS) at the completion of the STS-134 mission's first of four space walks. Astronauts Feustel and Greg Chamitoff (out of frame), fellow mission specialist, accomplished several tasks on the ISS.

JSC2008-E-047965 (4 June 2008) --- Astronaut Andrew J. Feustel, STS-125 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for a training session in the Space Vehicle Mockup Facility at NASA's Johnson Space Center. United Space Alliance suit technicians assisted Feustel.

ISS028-E-005247 (25 May 2011) --- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third spacewalk (and Feustel?s third for the mission and sixth overall in his career). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

ISS028-E-005272 (25 May 2011) -- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third space walk (and Feustel?s third, as well). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

ISS028-E-005260 (25 May 2011) --- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third spacewalk (and Feustel?s third for the mission and sixth overall in his career). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

ISS028-E-005271 (25 May 2011) -- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third space walk (and Feustel?s third, as well). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

ISS028-E-005262 (25 May 2011) --- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third spacewalk (and Feustel?s third for the mission and sixth overall in his career). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

ISS028-E-005266 (25 May 2011) -- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third space walk (and Feustel?s third, as well). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

ISS028-E-005283 (25 May 2011) -- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third space walk ( and Feustel?s third, as well). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

ISS028-E-005253 (25 May 2011) --- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third spacewalk (and Feustel?s third for the mission and sixth overall in his career). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS.

S125-E-012464 (20 May 2009) --- Astronaut Andrew Feustel (left), Megan McArthur and Michael Good, all STS-125 mission specialists, pose for a photo on the middeck of the Earth-orbiting Space Shuttle Atlantis.

S125-E-009760 (18 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, works on the middeck of the Earth-orbiting Space Shuttle Atlantis during flight day eight activities.

S125-E-007285 (13 May 2009) --- Astronaut Andrew Feustel (left) and John Grunsfeld, both STS-125 mission specialists, are pictured on the middeck of Space Shuttle Atlantis during flight day three activities.

JSC2006-E-47130 (31 Oct. 2006) --- Astronaut Andrew J. Feustel, STS-125 mission specialist for the newly announced final shuttle crew scheduled to visit and work on the Hubble Space Telescope.

JSC2009-E-087212 (23 April 2009) --- Astronauts Mike Massimino (left) and Andrew Feustel, both STS-125 mission specialists, are pictured during a STS-125 preflight press briefing at NASA's Johnson Space Center.

S125-E-006603 (13 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, uses a computer on the middeck of Space Shuttle Atlantis during flight day three activities.

S125-E-011802 (19 May 2009) --- Astronauts Megan McArthur and Andrew Feustel, both STS-125 mission specialists, are pictured on the middeck of the Earth-orbiting Space Shuttle Atlantis.

S125-E-006592 (12 May 2009) --- Astronauts Megan McArthur, Mike Massimino (center) and Andrew Feustel, all STS-125 mission specialists, prepare to eat a meal on the middeck of the Earth-orbiting Space Shuttle Atlantis.

Andrew Feustel, deputy chief of the Astronaut Office, monitors the countdown of the launch of a SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft on NASA’s SpaceX Crew-2 mission with NASA astronauts Shane Kimbrough and Megan McArthur, ESA (European Space Agency) astronaut Thomas Pesquet, and Japan Aerospace Exploration Agency (JAXA) astronaut Akihiko Hoshide onboard, Friday, April 23, 2021, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-2 mission is the second crew rotation mission of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Kimbrough, McArthur, Pesquet, and Hoshide launched at 5:49 a.m. EDT, from Launch Complex 39A at the Kennedy Space Center. Photo Credit: (NASA/Joel Kowsky)

The STS-134 astronauts from left, European Space Agency's Roberto Vittori, Gregory H. Johnson, pilot; Mark Kelly, commander; Michael Fincke, Greg Chamitoff, and Andrew Feustel all mission specialists, pose for a group photograph shortly after landing onboard the space shuttle Endeavour at the Shuttle Landing Facility (SLF) at Kennedy Space Center, Wednesday, June 1, 2011, in Cape Canaveral, Fla. Endeavour, completing a 16-day mission to outfit the International Space Station, spent 299 days in space and traveled more than 122.8 million miles during its 25 flights. It launched on its first mission on May 7, 1992. Photo Credit: (NASA/Bill Ingalls)

S134-E-009119 (25 May 2011) --- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third spacewalk (Feustel?s third for the mission and sixth overall in his career). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS. Photo credit: NASA

S134-E-009077 (25 May 2011) --- With his Extravehicular Mobility Unit spacesuit backdropped against the blackness of space, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third spacewalk (Feustel?s third for the mission and sixth overall in his career). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS. Photo credit: NASA

S134-E-009110 (25 May 2011) --- With various components of the International Space Station in the view, NASA astronaut Andrew Feustel is pictured during the STS-134 mission?s third spacewalk (Feustel?s third for the mission and sixth overall in his career). Astronauts Feustel and Michael Fincke (out of frame), both mission specialists, coordinated their shared activity with NASA astronaut Greg Chamitoff (out of frame), who stayed in communication with the pair and with Mission Control Center in Houston from the shirt sleeve environment inside the ISS. Photo credit: NASA

S125-E-007240 (14 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, appears to be selecting his next tool to use while participating in the first of his crew's five scheduled sessions of extravehicular activity to perform final hands-on servicing of the Hubble Space Telescope. Feustel and veteran astronaut John Grunsfeld (out of frame) are scheduled to participate in a total of three of those spacewalks.

S134-E-008666 (22 May 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the eight-hour, seven-minute spacewalk, Feustel and astronaut Michael Fincke (out of frame), mission specialist, completed all planned tasks, including refilling one of the station’s cooling loops with ammonia and lubricating one of the station’s massive solar alpha rotary joints. Photo credit: NASA

S125-E-009877 (18 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, participates in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Feustel and astronaut John Grunsfeld (out of frame), mission specialist, installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

S134-E-008654 (22 May 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the eight-hour, seven-minute spacewalk, Feustel and astronaut Michael Fincke (out of frame), mission specialist, completed all planned tasks, including refilling one of the station’s cooling loops with ammonia and lubricating one of the station’s massive solar alpha rotary joints. Photo credit: NASA

S134-E-008650 (22 May 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the eight-hour, seven-minute spacewalk, Feustel and astronaut Michael Fincke (out of frame), mission specialist, completed all planned tasks, including refilling one of the station’s cooling loops with ammonia and lubricating one of the station’s massive solar alpha rotary joints. Photo credit: NASA

S125-E-010122 (18 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, participates in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Feustel and astronaut John Grunsfeld (out of frame), mission specialist, installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

S125-E-007855 (16 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, reaches for a power tool as he navigates near the Hubble Space Telescope on the end of the remote manipulator system arm, controlled from inside Atlantis? crew cabin. Astronauts Feustel and John Grunsfeld were continuing servicing work on the giant observatory, locked down in the cargo bay of the shuttle.

S125-E-007853 (16 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, navigates near the Hubble Space Telescope on the end of the remote manipulator system arm, controlled from inside Atlantis? crew cabin. Astronaut John Grunsfeld signals to his crewmate from just a few feet away. Astronauts Feustel and Grunsfeld were continuing servicing work on the giant observatory, locked down in the cargo bay of the shuttle.

S134-E-005334 (16 May 2011) --- Astronaut Andrew Feustel, STS-134 mission specialist, looks over a crew procedures manual on the aft flight deck during the crew's first day in space, May 16, 2011. Feustel and five crewmates are destined for the International Space Station to continue work on the orbital complex. Photo credit: NASA

JSC2008-E-008443 (29 Jan. 2008) --- Astronaut Andrew J. Feustel, STS-125 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for a training session in the Space Vehicle Mockup Facility at Johnson Space Center. United Space Alliance (USA) suit technicians Nicole Everett and Steve Cortinas assisted Feustel.

S125-E-007174 (14 May 2009) --- Perched on the end of the Canadian-built remote manipulator system, astronaut Andrew Feustel, mission specialist, performs work on the Hubble Space Telescope as the first of five STS-125 spacewalks kicks off a week?s work on the orbiting observatory. Feustel, teamed with astronaut John Grunsfeld (out of frame), will join the veteran spacewalker on two of the remaining four sessions of extravehicular activity later in the mission.

S125-E-009603 (18 May 2009) --- Astronauts John Grunsfeld (left) and Andrew Feustel, both STS-125 mission specialists, participate in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Grunsfeld and Feustel installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

JSC2010-E-051959 (12 April 2010) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for a post insertion/de-orbit training session in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. United Space Alliance suit technicians Toni Cost-Davis and Jim Cheatham assisted Feustel.

JSC2008-E-118407 (26 Sept. 2008) --- Attired in a training version of his Extravehicular Mobility Unit (EMU) spacesuit, astronaut Andrew Feustel, STS-125 mission specialist, prepares for a training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Astronaut Michael Good, mission specialist, assisted Feustel.

S125-E-009721 (18 May 2009) --- Astronauts John Grunsfeld (left) and Andrew Feustel, both STS-125 mission specialists, participate in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Grunsfeld and Feustel installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

S125-E-007171 (14 May 2009) --- Perched on the end of the Canadian-built remote manipulator system, astronaut Andrew Feustel, mission specialist, performs work on the Hubble Space Telescope as the first of five STS-125 spacewalks kicks off a week?s work on the orbiting observatory. Feustel, teamed with astronaut John Grunsfeld (out of frame), will join the veteran spacewalker on two of the remaining four sessions of extravehicular activity later in the mission.

S134-E-006392 (17 May 2011) -- During the second flight day of Endeavour's final mission, astronaut Andrew Feustel, STS-134 mission specialist, realizes he likely won't recognize this area of the spacecraft's middeck at mission's end in 16-days, when all the supplies and equipment will have been moved to other locations on the shuttle and on the International Space Station. Feustel and his five crewmates are settling in for almost two weeks of work on the orbital outpost. Photo credit: NASA

S125-E-009667 (18 May 2009) --- Astronauts John Grunsfeld (left) and Andrew Feustel, both STS-125 mission specialists, participate in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Grunsfeld and Feustel installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

JSC2008-E-008444 (29 Jan. 2008) --- Astronaut Andrew J. Feustel, STS-125 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for a training session in the Space Vehicle Mockup Facility at Johnson Space Center. United Space Alliance (USA) suit technicians Nicole Everett and Steve Cortinas assisted Feustel.

S125-E-007854 (16 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, retrieves a power tool as he navigates near the Hubble Space Telescope on the end of the remote manipulator system arm, controlled from inside Atlantis? crew cabin. Astronauts Feustel and John Grunsfeld were continuing servicing work on the giant observatory, locked down in the cargo bay of the shuttle.

JSC2008-E-118408 (26 Sept. 2008) --- Astronaut Andrew Feustel, STS-125 mission specialist, dons a training version of his Extravehicular Mobility Unit (EMU) spacesuit in preparation for a training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Astronaut Michael Good, mission specialist, assisted Feustel.

JSC2011-E-026938 (11 March 2011) --- Attired in training versions of their shuttle launch and entry suits, NASA astronaut Greg Chamitoff (foreground) and Andrew Feustel, both STS-134 mission specialists, participate in an ingress/egress training session in a shuttle mock-up in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Suit technician Raymond Cuevas assisted Chamitoff and Feustel. Photo credit: NASA or National Aeronautics and Space Administration

S134-E-008658 (22 May 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the eight-hour, seven-minute spacewalk, Feustel and astronaut Michael Fincke (out of frame), mission specialist, completed all planned tasks, including refilling one of the station’s cooling loops with ammonia and lubricating one of the station’s massive solar alpha rotary joints. Photo credit: NASA

JSC2007-E-113497 (17 Dec. 2007) --- Astronauts John M. Grunsfeld and Andrew J. Feustel (partially obscured), both STS-125 mission specialists, are about to be submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center. Grunsfeld and Feustel are attired in training versions of the Extravehicular Mobility Unit (EMU) spacesuit. SCUBA-equipped divers (out of frame) are in the water to assist the crewmembers in their rehearsal, intended to help prepare them for work on the Hubble Space Telescope.

ISS027-E-034379 (20 May 2011) --- NASA astronauts Andrew Feustel (left) and Greg Chamitoff (right), both STS-134 mission specialists, attired in Extravehicular Mobility Unit (EMU) spacesuits, are pictured in the Quest airlock of the International Space Station as they prepare for the start of the mission's first spacewalk. NASA astronauts Mark Kelly (center right), commander, and Michael Fincke, mission specialist, assisted Feustel and Chamitoff.

S125-E-009706 (18 May 2009) --- Astronauts John Grunsfeld (left) and Andrew Feustel, both STS-125 mission specialists, participate in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Grunsfeld and Feustel installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

S125-E-007291 (14 May 2009) --- Astronauts Mike Massimino (left) and Andrew Feustel, both STS-125 mission specialists, look over a procedures checklist on the middeck of Space Shuttle Atlantis prior to the mission?s first session of extravehicular activity (EVA). Feustel is wearing the liquid cooling and ventilation garment that complements the Extravehicular Mobility Unit (EMU) spacesuit.

S125-E-010103 (18 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, participates in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Feustel and astronaut John Grunsfeld (out of frame), mission specialist, installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

JSC2011-E-026919 (11 March 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for an ingress/egress training session in a shuttle mock-up in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Suit technician Andre Denard assisted Feustel. Photo credit: NASA or National Aeronautics and Space Administration

S134-E-008649 (22 May 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the eight-hour, seven-minute spacewalk, Feustel and astronaut Michael Fincke (out of frame), mission specialist, completed all planned tasks, including refilling one of the station’s cooling loops with ammonia and lubricating one of the station’s massive solar alpha rotary joints. Photo credit: NASA

S125-E-007858 (16 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, navigates around the Hubble Space Telescope on the end of the remote manipulator system arm, controlled from inside Atlantis? crew cabin. Astronauts Feustel and John Grunsfeld were continuing servicing work on the giant observatory, locked down in the cargo bay of the shuttle.

S125-E-007170 (14 May 2009) --- Perched on the end of the Canadian-built remote manipulator system, astronaut Andrew Feustel, mission specialist, performs work on the Hubble Space Telescope as the first of five STS-125 spacewalks kicks off a week?s work on the orbiting observatory. Feustel, teamed with astronaut John Grunsfeld (out of frame), will join the veteran spacewalker on two of the remaining four sessions of extravehicular activity later in the mission.

S125-E-007176 (14 May 2009) --- Perched on the end of the Canadian-built remote manipulator system, astronaut Andrew Feustel, mission specialist, performs work on the Hubble Space Telescope as the first of five STS-125 spacewalks kicks off a week?s work on the orbiting observatory. Feustel, teamed with astronaut John Grunsfeld (arm is visible at bottom frame), will join the veteran spacewalker on two of the remaining four sessions of extravehicular activity later in the mission.

JSC2008-E-118410 (26 Sept. 2008) --- Astronaut Andrew Feustel, STS-125 mission specialist, dons a training version of his Extravehicular Mobility Unit (EMU) spacesuit in preparation for a training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Astronaut Michael Good, mission specialist, assisted Feustel.

JSC2007-E-113486 (17 Dec. 2007) --- Astronaut Andrew J. Feustel, STS-125 mission specialist, dons a training version of the Extravehicular Mobility Unit (EMU) spacesuit prior to being submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center. Astronaut Michael T. Good, mission specialist, assisted Feustel.

JSC2010-E-124260 (8 Sept. 2010) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for a training session in the fixed-base shuttle mission simulator (SMS) in the Jake Garn Simulation and Training Facility at NASA?s Johnson Space Center. United Space Alliance suit technician Russ Baker assisted Feustel. Photo credit: NASA or National Aeronautics and Space Administration

JSC2010-E-193913 (1 Dec. 2010) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, participates in an extravehicular activity (EVA) training session in the Partial Gravity Simulator (POGO) test area in the Space Vehicle Mock-up Facility at NASA?s Johnson Space Center. Crew instructors Allison Bolinger (standing) and Vickie Otto assisted Feustel. Photo credit: NASA or National Aeronautics and Space Administration

S125-E-009718 (18 May 2009) --- Astronauts John Grunsfeld (bottom) and Andrew Feustel, both STS-125 mission specialists, participate in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Grunsfeld and Feustel installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

JSC2007-E-113498 (17 Dec. 2007) --- Astronauts John M. Grunsfeld and Andrew J. Feustel (partially obscured), both STS-125 mission specialists, are about to be submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center. Grunsfeld and Feustel are attired in training versions of the Extravehicular Mobility Unit (EMU) spacesuit. SCUBA-equipped divers (out of frame) are in the water to assist the crewmembers in their rehearsal, intended to help prepare them for work on the Hubble Space Telescope.

S134-E-008635 (22 May 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the eight-hour, seven-minute spacewalk, Feustel and astronaut Michael Fincke (out of frame), mission specialist, completed all planned tasks, including refilling one of the station’s cooling loops with ammonia and lubricating one of the station’s massive solar alpha rotary joints. Photo credit: NASA

S125-E-010047 (18 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, participates in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Feustel and astronaut John Grunsfeld (out of frame), mission specialist, installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics.

JSC2011-E-026913 (11 March 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for an ingress/egress training session in a shuttle mock-up in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Suit technician Drew Billingsley assisted Feustel. Photo credit: NASA or National Aeronautics and Space Administration

iss055e020137 (4/13/2018) --- Photographic documentation taken in the Japanese Experiment Module (JEM) during preparations for the install of the Materials ISS Experiment - Flight Facility (MISSEE-FF). The MISSE-FF platform provides the ability to test materials, coatings, and components or other larger experiments in the harsh environment of space, which is virtually impossible to do collectively on Earth.

iss055e010761 (4/5/2018) --- Photographic documentation of CASIS Protein Crystal Growth (PCG) -11 hardware during CS-DCB-Unpack2 activity aboard the International Space Station (ISS). Neutron Crystallographic Studies of Human Acetylcholinesterase for the Design of Accelerated Reactivators (CASIS PCG 11) produces acetylcholinesterase crystals, a neurotransmitter enzyme. Crystals grown in microgravity are larger, of higher-quality and can be used for a technique called macromolecular neutron crystallography (MNC) to locate hydrogen atoms in the crystal’s structure.

iss055e020134 (4/13/2018) --- Photographic documentation taken in the Japanese Experiment Module (JEM) during preparations for the install of the Materials ISS Experiment - Flight Facility (MISSEE-FF). The MISSE-FF platform provides the ability to test materials, coatings, and components or other larger experiments in the harsh environment of space, which is virtually impossible to do collectively on Earth.

iss055e035971 (4/28/2018) --- Photo documentation of locations of where samples taken by the crew for the Divert Unwanted Space Trash (DUST) operations aboard the International Space Station (ISS). The DUST investigation collects and analyzes particulates in airborne debris from the ISS cabin. Unique aspects of the spacecraft environment, such as lack of gravity and no fresh air, influence the size, quantity, and components of airborne particulate matter, which in turn affects air quality aboard the station. The data also provides baseline information for future spacecraft particle detector design, and the debris can be used for realistic testing of possible particulate monitors for future long-duration missions.

iss055e012512 (April 6, 2018) --- The Phoenix International Raceway is seen in this near overhead shot above Phoenix, Arizona from the International Space Station.

iss055e010753 (4/5/2018) --- Photographic documentation of CASIS Protein Crystal Growth (PCG) -11 hardware during CS-DCB-Unpack2 activity aboard the International Space Station (ISS). Neutron Crystallographic Studies of Human Acetylcholinesterase for the Design of Accelerated Reactivators (CASIS PCG 11) produces acetylcholinesterase crystals, a neurotransmitter enzyme. Crystals grown in microgravity are larger, of higher-quality and can be used for a technique called macromolecular neutron crystallography (MNC) to locate hydrogen atoms in the crystal’s structure.

iss055e035968 (4/28/2018) --- Photo documentation of locations of where samples taken by the crew for the Divert Unwanted Space Trash (DUST) operations aboard the International Space Station (ISS). The DUST investigation collects and analyzes particulates in airborne debris from the ISS cabin. Unique aspects of the spacecraft environment, such as lack of gravity and no fresh air, influence the size, quantity, and components of airborne particulate matter, which in turn affects air quality aboard the station. The data also provides baseline information for future spacecraft particle detector design, and the debris can be used for realistic testing of possible particulate monitors for future long-duration missions.