JSC2000-03056 (12 April 2000) --- Astronaut David A. Wolf, mission specialist.

STS058-204-014 (18 Oct.-1 Nov. 1993) --- Astronaut David A. Wolf, mission specialist, participates in an experiment that investigates in-space distribution and movement of blood and gas in the pulmonary system. The data gathered during the two-week flight will be compared with results of tests performed on Earth to determine the changes that occur in pulmonary functions. Photo credit: NASA

JOHNSON SPACE CENTER, HOUSTON, TEXAS -- (JSC2000-03056) Official portrait of astronaut David A. Wolf, mission specialist.

JOHNSON SPACE CENTER, HOUSTON, TEXAS -- (JSC2000-03056) Official portrait of astronaut David A. Wolf, mission specialist.

STS-127 Commander Mark Polansky, left, looks on as crew member David Wolf answer a question during a presentation to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Photo Credit: (NASA/Paul E. Alers)

S93-31702 (3 April 1993) --- Astronaut David A. Wolf participates in training for contingency extravehicular activity (EVA) for the STS-58 mission. Behind Wolf, sharing the platform with him is astronaut Shannon W. Lucid. For simulation purposes, the two mission specialists were 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.

S93-31706 (3 April 1993) --- With the aid of technicians and training staffers astronaut David A. Wolf prepares to participate in training for contingency Extravehicular Activity (EVA) for the STS-58 mission. Sharing a moveable platform with Wolf was astronaut Shannon W. Lucid (out of frame). For simulation purposes, the two mission specialists were 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.

S93-31701 (3 April 1993) --- Displaying the flexibility of his training version of the Shuttle Extravehicular Mobility Unit (EMU) space suit, astronaut David A. Wolf participates in training for contingency Extravehicular Activity (EVA) for the STS-58 mission. Behind Wolf, sharing the platform with him was astronaut Shannon W. Lucid. For simulation purposes, the two mission specialists were 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.

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Julie Payette, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Julie Payette, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

President Donald Trump, center, signs an Executive Order to reestablish the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Vice President Mike Pence, also in attendance, will chair the council. Also pictured are retired NASA astronaut David Wolf, left, NASA Astronaut Alvin Drew, second from right, and retired NASA astronaut Buzz Aldrin, right. Photo Credit: (NASA/Aubrey Gemignani)

Canadian Space Agency astronaut Julie Payette, a mission specialist on STS-127, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Mark Polansky, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, standing left, talks about the recent mission to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Julie Payette, Christopher Cassidy, David Wolf, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, and crew member David Wolf, standing right, answer questions from White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

Ajani Young, a fourth grade student at Anne Beers Elementary school, at podium, introduces the crew of STS-127 during their visit, Thursday, Sept. 24, 2009, in Washington. Seated from left are crew members, Chris Cassidy, Doug Hurley, Commander Mark Polansky, David Wolf, Tom Marshburn and Canadian Space Agency astronaut Julie Payette. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, center, speaks to students during a visit to Anne Beers Elementary school, Thursday, Sept. 24, 2009, in Washington. Polansky, along with the rest of the crew from STS-127, visited with students at the school Thursday. Seated from left are Canadian Space Agency astronaut Julie Payette, Chris Cassidy, Doug Hurley, David Wolf and Tom Marshburn. Photo Credit: (NASA/Paul E. Alers)

Students and teachers look on as STS-127 Commander Mark Polansky, seated left on stage talks about the mission to the International Space Station as other crew members Chris Cassidy, Doug Hurley, David Wolf, Tom Marshburn looks on during a visit to Anne Beers Elementary school, Thursday, Sept. 24, 2009, in Washington. Photo Credit: (NASA/Paul E. Alers)

President Donald Trump, center, speaks to the crowd before signing an Executive Order to reestablish the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Vice President Mike Pence, also in attendance, will chair the council. Also pictured are retired NASA astronaut David Wolf, left, NASA Astronaut Alvin Drew, second from right, and retired NASA astronaut Buzz Aldrin, right. Photo Credit: (NASA/Aubrey Gemignani)

STS112-E-05130 (11 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, is pictured on the aft flight deck of the Space Shuttle Atlantis.

JSC2002-E-36217 (6 September 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, responds to a query during a pre-flight press conference at Johnson Space Center (JSC). Astronaut Sandra H. Magnus, mission specialist, is visible to the left of Wolf.

JSC2002-00517 (19 February 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, floats in a small life raft during an emergency bailout training session in the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center (JSC). Wolf is attired a training version of the shuttle launch and entry suit.

STS112-E-5331 (12 October 2002) --- Astronaut David A. Wolf, mission specialist, participates in a six hour, four minute spacewalk, the second of three scheduled for the STS-112 mission. Astronauts Wolf and Piers J. Sellers are the assigned spacewalkers for all three.

STS112-336-020 (12 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, looks over a procedures checklist in the Quest Airlock on the International Space Station (ISS). Wolf is attired in his Extravehicular Mobility Unit (EMU) spacesuit.

STS112-E-5239 (12 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, is only a helmet donning and several minutes away from being ready for the mission's second extravehicular activity (EVA). Wolf was later joined by astronaut Piers J. Sellers for the six hour, four minute spacewalk.

S89-E-5320 (26 Jan 1998) --- This Electronic Still Camera (ESC) image shows astronauts and cosmonaut guest researchers Andrew S. W. Thomas (on left) and David A. Wolf during hand-over operations onboard the Russian Mir Space Station. Wolf is explaining the operations of this equipment to Thomas. Thomas, replacing Wolf as cosmonaut guest researcher, will be the last American astronaut to serve a tour aboard the Mir. This ESC view was taken on January 26, 1998, at 15:58:39 MET.

STS-86 Mission Specialist David A. Wolf, the next U.S. astronaut slated to live and work on the Russian Space Station Mir, is all smiles after his arrival at KSC’s Shuttle Landing Facility on Monday. Wolf is making his second spaceflight on STS-86, scheduled to be the seventh docking of the Shuttle with the Mir. After the docking, Wolf will transfer to the Mir for an approximate four-month stay. He replaces U.S. astronaut C. Michael Foale, who arrived at Mir in May and will return to Earth with the remainder of the STS-86 crew

STS112-309-008 (7-18 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, is pictured near an Extravehicular Mobility Unit (EMU) space suit on the middeck of the Space Shuttle Atlantis.

STS112-E-05006 (8 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, uses a razor on his face during flight day two on the middeck of the Space Shuttle Atlantis.

STS112-314-010 (7-18 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, floats in the Unity node on the International Space Station (ISS).

S93-45364 (29 Sept 1993) --- Astronaut David A. Wolf, mission specialist, participates in pre-flight data collection for the cardiovascular experiments scheduled to fly aboard Columbia for the Spacelab Life Sciences (SLS-2) mission.

STS112-324-008 (7-18 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, works with a temporary flight deck seat, used for launch and entry, on the Space Shuttle Atlantis.

STS112-E-5220 (12 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, gets his extravehicular mobility unit (EMU) spacesuit ready for the second scheduled spacewalk of the mission.

JSC2002-E-42182 (19 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, addresses an Ellington Field crowd following the return to Houston by the STS-112 mission's six crewmembers.

Volatiles Investigating Polar Exploration Rover (VIPER) vehicle operational readiness test in the Multi-Mission Operations Center (MMOC), N240A. Jasper Wolfe, left, with David Korsmeyer, and Eugene Tu, right.

STS112-E-5246 (12 October 2002) --- Astronaut Pamela Melroy, STS-112 pilot, assists astronaut David A. Wolf with his extravehicular mobility unit (EMU) spacesuit prior to the mission's second scheduled spacewalk.

STS112-304-013 (12 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, participates in the mission’s second session of extravehicular activity (EVA).

STS112-E-5264 (12 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, is ready to egress the airlock to begin the mission's second scheduled spacewalk.

JSC2008-E-047941 (19 June 2008) --- Astronaut David A. Wolf, STS-127 mission specialist, participates in a food tasting session in the Flight Projects Division Laboratory at NASA's Johnson Space Center.

Volatiles Investigating Polar Exploration Rover (VIPER) vehicle operational readiness test in the Multi-Mission Operations Center (MMOC), N240A. Jasper Wolfe, front, with David Korsmeyer, and Eugene Tu.

STS-86 Mission Specialist David A. Wolf gets assistance from a suit technician while donning his orange launch and entry suit in the Operations and Checkout Building. This will be Wolf’s second flight. He and the six other crew members will depart shortly for Launch Pad 39A, where the Space Shuttle Atlantis awaits liftoff on a 10-day mission slated to be the seventh docking of the Space Shuttle with the Russian Space Station Mir. Wolf will transfer to the Mir 24 crew, replacing U.S. astronaut C. Michael Foale, who will return to Earth aboard Atlantis with the rest of the STS-86 crew. Wolf is expected to live and work aboard the Russian space station for about four months

President Donald Trump, center, speaks before signing an Executive Order to reestablish the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Vice President Mike Pence, also in attendance, will chair the council. Also pictured are, Rep. Bill Posey, R-Florida, Rep. Lamar Smith, R-Texas, Rep. John Culberson, R-Texas, Rep. Steven Palazzo, R-Miss., Rep. Brian Babin, R-Texas, Rep. Mo Brooks, R-Alabama, Rep. Dana Rohrbacher, R-California, Former Rep. Bob Walker, R-Pennsylvania, Sandy Magnus, executive director, American Institute of Aeronautics and Astronautics, David Melcher, executive director, Aerospace Industries Association, Tory Bruno, CEO, United Launch Alliance, Michal Riley, CEO, AMRO Fabricating Corporation, John Couch, president, Futuramic, Mike Cain, owner, Cain Tubular Products, Mary Lynne Dittmar, executive director, Coalition for Deep Space Exploration, Dennis Muilenburg, CEO Boeing Company, Marilyn Hewson, CEO, Lockheed Martin, Wes Bush, CEO, Northrop Grumman, retired NASA astronaut Buzz Aldrin, NASA astronaut Alvin Drew, retired NASA astronaut David Wolf, Apollo 13 flight director, Gene Kranz, Secretary of Commerce Wilbur Ross, Under Secretary of the Air Force Lisa Disbrow, and Acting Deputy Director of National Intelligence, Dawn Eilengerger. Photo Credit: (NASA/Aubrey Gemignani)

President Donald Trump, center, asks who should receive the pen after signing an Executive Order to reestablish the National Space Council, alongside members of the Congress, National Aeronautics and Space Administration, and Commercial Space Companies in the Roosevelt room of the White House in Washington, Friday, June 30, 2017. Retired astronaut Buzz Aldrin was given the pen. Also pictured are, Vice President Mike Pence, Rep. Bill Posey, R-Florida, Rep. Lamar Smith, R-Texas, Rep. John Culberson, R-Texas, Rep. Steven Palazzo, R-Miss., Rep. Brian Babin, R-Texas, Rep. Mo Brooks, R-Alabama, Rep. Dana Rohrbacher, R-California, Former Rep. Bob Walker, R-Pennsylvania, Sandy Magnus, executive director, American Institute of Aeronautics and Astronautics, David Melcher, executive director, Aerospace Industries Association, Tory Bruno, CEO, United Launch Alliance, Michal Riley, CEO, AMRO Fabricating Corporation, John Couch, president, Futuramic, Mike Cain, owner, Cain Tubular Products, Mary Lynne Dittmar, executive director, Coalition for Deep Space Exploration, Dennis Muilenburg, CEO Boeing Company, Marilyn Hewson, CEO, Lockheed Martin, Wes Bush, CEO, Northrop Grumman, NASA Astronaut Alvin Drew, retired NASA astronaut David Wolf, Apollo 13 flight director, Gene Kranz, Secretary of Commerce Wilbur Ross, Under Secretary of the Air Force Lisa Disbrow, and Acting Deputy Director of National Intelligence, Dawn Eilengerger. Photo Credit: (NASA/Aubrey Gemignani)

KENNEDY SPACE CENTER, FLA. - Claudia Hessing, the principal of Carol City Elementary School, a NASA Explorer School, in Miami, Fla., introduces NASA guests in the front left row, Center Director Jim Kennedy (center) and astronaut Dr. David A. Wolf (far left). Kennedy made the tour to share America’s new vision for space exploration with the next generation of explorers. He was accompanied by astronaut Dr. David A. Wolf. Kennedy is talking with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

STS-86 Mission Specialist David A. Wolf dons a gas mask as part of training exercises during the Terminal Countdown Demonstration Test (TCDT), a dress rehearsal for launch. Wolf is wearing the patch from his first and only mission to date, STS-58 in 1993. STS-86 will be the seventh docking of the Space Shuttle with the Russian Space Station Mir. During the docking, Wolf will transfer to the orbiting Russian station and become a member of the Mir 24 crew, replacing U.S. astronaut C. Michael Foale, who has been on the Mir since the last docking mission, STS-84, in May. Launch of Mission STS-86 aboard the Space Shuttle Atlantis is targeted for Sept. 25

KENNEDY SPACE CENTER, FLA. - Astronaut Dr. David A. Wolf (sixth from left), Center Director Jim Kennedy (fourth from right) and Principal Claudia Hessing (second from right) pose with students during Kennedy and Wolf’s visit to Carol City Elementary School, a NASA Explorer School, in Miami, Fla. Kennedy is sharing America’s new vision for space exploration with the next generation of explorers. He and Wolf talked with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

STS-86 Mission Specialist David A. Wolf arrives in a T-38 jet at KSC’s Shuttle Landing Facility for the Terminal Countdown Demonstration Test (TCDT), a dress rehearsal for launch. STS-86 will be the seventh docking of the Space Shuttle with the Russian Space Station Mir. During the mission, Wolf will transfer to the Mir 24 crew, replacing astronaut C. Michael Foale, who will return to Earth with the rest of the STS-86 crew. Wolf is scheduled to remain on the Mir until his replacement arrives on the STS-89 mission in January. STS-86 is targeted for a Sept. 25 launch aboard the Space Shuttle Atlantis

STS089-370-034 (22-31 Jan. 1998) --- Astronaut David A. Wolf, freshly removed from a long stay aboard Russia’s Mir Space Station, creates a sandwich onboard the Earth-orbiting space shuttle Endeavour. Wolf had earlier been replaced on Mir by Andrew S. W. Thomas, cosmonaut guest researcher, who will be last NASA astronaut assigned to Mir duty as part of the Phase I program. Photo credit: NASA

JSC2002-E-27065 (1 July 2002) --- Astronauts David A. Wolf and Piers J. Sellers (partially obscured), both STS-112 mission specialists, are about to be submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center (JSC). Wolf and Sellers are wearing the training version of the Extravehicular Mobility Unit (EMU) space suit. Scuba divers are in the water to assist the astronauts in their rehearsal, intended to help prepare them for work on the exterior of the International Space Station (ISS).

STS112-309-033 (10 October 2002) --- Astronauts Piers J. Sellers (left) and David A. Wolf, STS-112 mission specialists, are photographed in the midst of a pre-breathe exercise in preparation for the mission’s first session of extravehicular activity (EVA). Sellers and Wolf are attired in the liquid cooling and ventilation garment that complements the Extravehicular Mobility Unit (EMU) space suit.

S89-E-5315 (26 Jan 1998) --- This Electronic Still Camera (ESC) image shows astronauts and cosmonaut guest researchers Andrew S. W. Thomas and David A. Wolf (giving thumbs up) in a hatchway onboard Russia's Mir Space Station. Thomas, replacing Wolf as cosmonaut guest researcher, will be the last American astronaut to serve a tour aboard Mir. This ESC view was taken on January 26, 1998, at 15:52:27 MET.

STS112-332-002 (12 October 2002) --- Astronaut Pamela A. Melroy, STS-112 pilot, assists astronaut David A. Wolf, mission specialist, with the final touches on his Extravehicular Mobility Unit (EMU) spacesuit prior to the mission’s second session of extravehicular activity (EVA). Astronaut Piers J. Sellers (partially out of frame), mission specialist, joined Wolf on the spacewalk.

JSC2002-00870 (24 April 2002) --- Astronauts Jeffrey S. Ashby (right) and David A. Wolf, STS-112 mission commander and mission specialist, respectively, are photographed prior to a mission training session in the Space Vehicle Mockup Facility at the Johnson Space Center (JSC). Ashby and Wolf are attired in training versions of the shuttle launch and entry suit.

STS089-364-022 (22-31 Jan. 1998) --- Astronauts David A. Wolf, a new member of the STS-89 crew; and Andrew S. W. Thomas, a new member of the Mir-24 crew, check out the just-unstowed CoCult hardware, a Mir tissue experiment. Wolf will return aboard the space shuttle Endeavour after spending four months on the Russian Mir Space Station. Thomas is the final United States astronaut to serve as guest researcher aboard Mir. Photo credit: NASA

STS112-E-05516 (14 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, exits the Quest Airlock on the International Space Station (ISS) to begin the third and final scheduled session of extravehicular activity (EVA) for the STS-112 mission. Astronaut Piers J. Sellers (out of frame), mission specialist, joined Wolf on the spacewalk.

STS112-326-033 (12 October 2002) --- Astronauts David A. Wolf (left) and Piers J. Sellers, both STS-112 mission specialists, participate in the mission’s second session of extravehicular activity (EVA). Wolf is anchored to a foot restraint on the International Space Station’s (ISS) Canadarm2 while Sellers traverses along the airlock spur, a route used by spacewalkers to get from the Quest airlock on the station to the outpost's truss.

STS112-336-035 (12 October 2002) --- Astronaut Pamela A. Melroy, STS-112 pilot, assists astronaut David A. Wolf, mission specialist, with the final touches on his Extravehicular Mobility Unit (EMU) spacesuit prior to the mission’s second session of extravehicular activity (EVA). Astronaut Piers J. Sellers (partially out of frame), mission specialist, joined Wolf on the spacewalk.

STS112-E-05488 (14 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, attired in his Extravehicular Mobility Unit (EMU) space suit, is photographed in the Quest Airlock on the International Space Station (ISS) prior to the third scheduled session of extravehicular activity (EVA). Astronaut Piers J. Sellers (out of frame), mission specialist, joined Wolf on the spacewalk.

STS089-390-008 (22-31 Jan 1998) --- Astronauts David A. Wolf (right), newly a member of the Space Shuttle Endeavour STS-89 crew; and Andrew S. W. Thomas, his cosmonaut guest researcher replacement on the Russia?s Mir Space Station, Mir-24 crew, check out the CoCult hardware, a Mir tissue experiment. Wolf is holding a sample display from the hardware.

S89-E-5310 (26 Jan 1998) --- This Electronic Still Camera (ESC) image shows astronauts David A. Wolf, former cosmonaut guest researcher (on left), and Andrew S. W. Thomas, future cosmonaut guest researcher. Wolf, during hand-over operations, explains the use of this scientific piece of equipment to Thomas, who will use this equipment during his tour aboard the Russian Mir Space Station. This ESC view was taken on January 26, 1998, at 15:50:31 MET.

STS112-E-05118 (10 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, works on the Starboard One (S1) Truss, newly installed on the International Space Station (ISS). Astronaut Piers J. Sellers (out of frame), mission specialist, worked in tandem with Wolf during the spacewalk. STS-112’s first session of extravehicular activity (EVA) lasted 7 hours and 1 minute.

STS112-E-5334 (12 October 2002) --- Astronaut David A. Wolf, mission specialist, his feet securely planted in a restraint device on the end of the Space Station Remote Manipulator System (SSRMS) or Canadarm2, appears suspended over a heavily cloud-covered part of Earth. Astronauts Wolf and Piers J. Sellers were the assigned spacewalkers for this the second STS-112 spacewalk as well as the two others.

STS112-E-05123 (10 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, anchored to the end of the Canadarm2, works on the Starboard One (S1) Truss, newly installed on the International Space Station (ISS). Astronaut Piers J. Sellers (partially obscured), mission specialist, worked in tandem with Wolf during the spacewalk. STS-112’s first session of extravehicular activity (EVA) lasted 7 hours and 1 minute.

STS112-E-05491 (14 October 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, attired in his Extravehicular Mobility Unit (EMU) space suit, is photographed in the Quest Airlock on the International Space Station (ISS) prior to the third scheduled session of extravehicular activity (EVA). Astronaut Piers J. Sellers (out of frame), mission specialist, joined Wolf on the spacewalk.

JSC2002-E-27056 (1 July 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, attired in a training version of the Extravehicular Mobility Unit (EMU) space suit, is about to begin a training session in the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center (JSC). Astronaut Pamela A. Melroy, pilot, assisted Wolf.

JSC2002-E-27051 (1 July 2002) --- Astronaut Pamela A. Melroy (left), STS-112 pilot; astronaut David A. Wolf, cosmonaut Fyodor N. Yurchikhin and astronaut Piers J. Sellers, all mission specialists, are pictured during a mission training session in the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center (JSC). Wolf and Sellers are wearing the liquid cooling and ventilation garment that complements the Extravehicular Mobility Unit (EMU) space suit. Yurchikhin represents Rosaviakosmos.

S112-E-05315 (12 Oct. 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, carries out a task to install an additional exterior station television camera outside of the Destiny Laboratory during the second spacewalk of the STS-112 mission. Astronauts Wolf and Piers J. Sellers are scheduled for a total of three spacewalks for the mission.

STS089-301-037 (22-31 Jan. 1998) --- Astronaut David A. Wolf, recently transferred to the STS-89 crew as mission specialist, works with samples in the Commercial Generic Bioprocessing Assembly (CGBA) onboard the Earth-orbiting space shuttle Endeavour. Wolf had earlier completed a four-month tour of duty on the Russian Space Agency's (RSA) Mir Space Station, as a cosmonaut guest researcher. Photo credit: NASA

S93-45370 (29 Sept 1993) --- Blood samples from crew members are critical to several Spacelab Life Sciences (SLS-2) investigations. Amalour Veloso (left) and Sandra Prow draw blood from David A. Wolf, mission specialist. Wolf was participating with five other NASA astronauts and a payload specialist on data collection and training in preparation for the two week SLS-2 mission.

STS112-345-028 (7-18 October 2002) --- The STS-112 crewmembers sleep on the middeck of the Space Shuttle Atlantis. Pictured are astronauts Sandra H. Magnus, David A. Wolf, Piers J. Sellers, mission specialists, and Jeffrey S. Ashby, mission commander.

JSC2002-E-27129 (27 June 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, is photographed during an Extravehicular Mobility Unit (EMU) fit check in a Space Station Airlock Test Article (SSATA) in the Crew Systems Laboratory at the Johnson Space Center (JSC).

JSC2002-00866 (24 April 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, wearing a training version of the full-pressure launch and entry suit, lowers himself from a simulated shuttle in trouble during an emergency egress training session in the Space Vehicle Mockup Facility at the Johnson Space Center (JSC).

JSC2002-00869 (24 April 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, gets help with final touches on the training version of the full-pressure launch and entry suit as he prepares for the start of a mission training session in the Space Vehicle Mockup Facility at the Johnson Space Center (JSC).

Volatiles Investigating Polar Exploration Rover (VIPER) vehicle operational readiness test in the Multi-Mission Operations Center (MMOC), N240A. Jasper Wolfe, front, with David Korsmeyer, left, Jay Trimble, Eugene Tu, Dan Andrews, and Justin Pane, right.

KENNEDY SPACE CENTER, FLA. -- STS-112 Mission Specialist David Wolf responds to a question during the crew's post-landing briefing for the media. Mission STS-112 was the 15th assembly flight to the International Space Station, installing the S1 truss. The landing was the 60th at KSC in the history of the Shuttle program.

JSC2002-00522 (19 February 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, attired in a training version of the shuttle launch and entry suit, awaits the start of a mission training session at the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center (JSC).

JSC2002-E-30478 (29 July 2002) --- Astronauts Jeffrey S. Ashby (left) and David A. Wolf, STS-112 mission commander and mission specialist, respectively, inspect flight hardware during a crew equipment bench review in an offsite facility near the Johnson Space Center (JSC).

STS112-318-028 (14 October 2002) --- Cosmonaut Fyodor N. Yurchikhin (left), STS-112 mission specialist, assists astronaut David A. Wolf, mission specialist, with the final touches on his Extravehicular Mobility Unit (EMU) space suit in the Quest Airlock on the International Space Station (ISS). Yurchikhin represents Rosaviakosmos.

JSC2002-E-27064 (1 July 2002) --- Astronaut David A. Wolf, STS-112 mission specialist, attired in a training version of the Extravehicular Mobility Unit (EMU) space suit, is about to be submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center (JSC).

KENNEDY SPACE CENTER, FLA. --STS-112 Mission Specialist David Wolf dons his spacesuit for a final fit check in preparation for his launch to the International Space Station aboard Atlantis. Launch is scheduled for Oct. 2 between 2 and 6 p.m. EDT.

STS112-E-5272 (12 October 2002) --- Astronaut David A. Wolf, mission specialist, works near a truss on the International Space Station (ISS) during the STS-112 mission's second spacewalk. Part of the Destiny Laboratory is visible in the foreground.

KENNEDY SPACE CENTER, FLA. --STS-112 Mission Specialist David Wolf waves for the camera during a final fit check of his spacesuit in preparation for his launch to the International Space Station aboard Atlantis. Launch is scheduled for Oct. 2 between 2 and 6 p.m. EDT.

STS112-332-014 (12 October 2002) --- Astronaut Pamela A. Melroy, STS-112 pilot, assists astronaut David A. Wolf, mission specialist, with the final touches on his Extravehicular Mobility Unit (EMU) spacesuit prior to the mission’s second session of extravehicular activity (EVA).

STS-89 Mission Specialist Andrew Thomas, Ph.D., poses for photographers at Kennedy Space Center's Shuttle Landing Facility after arriving to prepare for launch later this week. Thomas will replace David Wolf, M.D., on the Russian Space Station Mir. Launch is scheduled for January 22 at 9:48 p.m. EST

Astronauts Tamara Jernigan (#1) and David Wolf (#2) are training in the Neutral Buoyancy Simulator (NBS) at Marshall Space Flight center with an exercise for International Space Station Alpha. The NBS provided the weightless environment encountered in space needed for testing and the practices of Extravehicular Activities (EVA).

STS-86 Mission Specialist David A. Wolf and friend Tammy Kruse greet family members, friends and other well-wishers during a brief visit to Launch Pad 39A on Sept. 24, the day before the Space Shuttle Atlantis is scheduled to lift off with its crew of seven. STS-86 is slated to be the seventh docking of the Space Shuttle with the Russian Space Station Mir. Wolf will be making his second spaceflight. After the docking, Wolf is scheduled to become a member of the Mir 24 crew, replacing U.S. astronaut C. Michael Foale. Wolf would remain on the Mir for about four months. Foale, who has been on the Mir since the STS-84 mission in mid-May, will return to Earth with the remaining six members of the STS-86 crew at the end of the planned 10-day flight

STS-86 Mission Specialist David A. Wolf waves to family members, friends and other well-wishers during a brief visit to Launch Pad 39A the day before the scheduled Sept. 25 launch aboard the Space Shuttle Atlantis. STS-86 is slated to be the seventh docking of the Space Shuttle with the Russian Space Station Mir. Wolf will be making his second spaceflight. After the docking, Wolf is scheduled to become a member of the Mir 24 crew, replacing U.S. astronaut C. Michael Foale. Wolf would remain on the Mir for about four months. Foale, who has been on the Mir since the STS-84 mission in mid-May, will return to Earth with the remaining six members of the STS-86 crew at the end of the planned 10-day flight

STS-86 Mission Specialists Wendy B. Lawrence, at left, and David A. Wolf confer, possibly about the Russian Space Station Mir, after their arrival at KSC's Shuttle Landing Facility for the Terminal Countdown Demonstration Test (TCDT). Lawrence was supposed to be the next U.S. astronaut slated for a long-duration stay aboard Mir, but was replaced by Wolf in late July. Unlike Lawrence, Wolf has undergone spacewalk training and fits in the Orlan spacesuit used by Russians on spacewalks. Lawrence will remain on the STS-86 crew, but will return to Earth at the conclusion of the planned 10-day mission. Wolf will take the place on Mir of astronaut C. Michael Foale, who arrived on the Russian space station during the STS-84 mission in May. STS-86 will be the seventh docking of the Space Shuttle with the Mir. The mission is targeted for a Sept. 25 launch aboard the Space Shuttle Atlantis

NASA astronaut and Mir 24 crew member David Wolf, M.D., enjoys a moment with the media at the Skid Strip at Cape Canaveral Air Station on Feb. 1 moments before his departure for Johnson Space Center. Other STS-89 crew members surrounding Dr. Wolf include, left to right, Pilot Joe Edwards Jr.; Commander Terrence Wilcutt; and Mission Specialist Bonnie Dunbar, Ph.D. In the red shirt behind Edwards is JSC Director of Flight Crew Operations David Leestma. The STS-89 crew that brought Dr. Wolf back to Earth arrived at KSC aboard the orbiter Endeavour Jan. 31, concluding the eighth Shuttle-Mir docking mission. STS-89 Mission Specialist Andrew Thomas, Ph.D., succeeded Dr. Wolf on Mir and is scheduled to remain on the Russian space station until the STS-91 Shuttle mission returns in June 1998. In addition to the docking and crew exchange, STS-89 included the transfer of science, logistical equipment and supplies between the two orbiting spacecrafts

KENNEDY SPACE CENTER, FLA. -- After his presentation at Howard A. Doolin Middle School, Miami, Fla., astronaut David Wolf signs a memento for a student. The school is one of 100 taking part in the NASA Explorer Schools (NES) program. Center Director Jim Kennedy and Wolf visited the school to share America’s new vision for space exploration with the next generation of explorers. They talked with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

KENNEDY SPACE CENTER, FLA. - Astronaut Dr. David A. Wolf (center) and External Relations Director Lisa Malone (right) learn about these students’ science project during a visit to Carol City Elementary School, a NASA Explorer School, in Miami, Fla. Wolf and Malone accompanied Center Director Jim Kennedy, who is sharing America’s new vision for space exploration with the next generation of explorers. Kennedy is talking with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

S89-E-5239 (26 Jan 1998) --- This Electronic Still Camera (ESC) image shows astronauts David A. Wolf and Andrew S. W. Thomas embracing after Thomas' second Russian Sokol spacesuit test, onboard the Russian Mir Space Station. Thomas is to replace Wolf as cosmonaut guest researcher. Upon Thomas' arrival to Mir he had problems with his Sokol suit, however, following suit modifications the suit fit properly. Thomas will be the last American astronaut to serve a tour onboard Mir. This ESC view was taken on January 26, 1998, at 12:56:15 MET.

KENNEDY SPACE CENTER, FLA. -- Astronaut David Wolf addresses students and faculty of Howard A. Doolin Middle School, Miami, Fla., about his experiences in space. Doolin Middle School is one of 100 to take part in the NASA Explorer Schools (NES) program. Wolf joins Center Director Jim Kennedy on his visit to share America’s new vision for space exploration with the next generation of explorers. He is talking with students in Florida and Georgia Explorer Schools about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

KENNEDY SPACE CENTER, FLA. -- Astronaut David Wolf addresses students and faculty of Howard A. Doolin Middle School, Miami, Fla., about his experiences in space. Doolin Middle School is one of 100 to take part in the NASA Explorer Schools (NES) program. Wolf joins Center Director Jim Kennedy on his visit to share America’s new vision for space exploration with the next generation of explorers. He is talking with students in Florida and Georgia Explorer Schools about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

S89-E-5240 (26 Jan 1998) --- This Electronic Still Camera (ESC) image shows astronauts David A. Wolf and Andrew S. W. Thomas embracing, after Thomas' second Russian Sokol spacesuit test, onboard the Russian Mir Space Station. Upon Thomas' arrival to Mir he had problems with his Sokol suit, however, following suit modifications the suit fit properly. Thomas, now replacing Wolf as cosmonaut guest researcher, will be the last American astronaut to serve a tour onboard Mir. This ESC view was taken on January 26, 1998, at 12:56:21 MET.

KENNEDY SPACE CENTER, FLA. -- During lunch in the library at Howard A. Doolin Middle School, Miami, Fla., astronaut David Wolf pauses for a photo with a member of the school board. Doolin Middle School is one of 100 to take part in the NASA Explorer Schools program. Wolf joined Center Director Jim Kennedy to share America’s new vision for space exploration with the next generation of explorers. Kennedy is talking with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

STS089-S-002 (Oct. 1997) --- These seven astronauts and one cosmonaut represent the flight crew for the STS-89 mission to Russia?s Mir Space Station. On the front row, from the left, are astronauts Joe F. Edwards, Jr., pilot; Terrence W. Wilcutt, commander; and Bonnie J. Dunbar, mission specialist. On the back row are David A. Wolf, currently onboard the Mir Space Station as a cosmonaut guest researcher; Salizan S. Sharipov, mission specialist representing the Russian Space Agency (RSA); James F. Reilly, mission specialist; Andrew S. W. Thomas, replacing Wolf aboard Mir as cosmonaut guest researcher; and Michael P. Anderson, mission specialist.

NASA5-328-030 (25 Sept.-6 Oct. 1997) --- Astronauts David A. Wolf and Wendy B. Lawrence, mission specialists, are pictured in the Docking Module (DM) between the Russia’s Mir Space Station and the Space Shuttle Atlantis, in early moments of joint activities between the STS-86 and Mir-24 crews. The photograph was taken with the camera used by astronaut C. Michael Foale, cosmonaut guest researcher, during his four-month stay aboard Mir. Wolf later replaced Foale as cosmonaut guest researcher on the Mir-24 crew.

KENNEDY SPACE CENTER, FLA. -- After his presentation at Howard A. Doolin Middle School, Miami, Fla., astronaut David Wolf signs a memento for a student. The school is one of 100 taking part in the NASA Explorer Schools (NES) program. Center Director Jim Kennedy and Wolf visited the school to share America’s new vision for space exploration with the next generation of explorers. They talked with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.

KENNEDY SPACE CENTER, FLA. -- After his presentation, astronaut David Wolf signs a memento for a student at Howard A. Doolin Middle School, Miami, Fla. The school is one of 100 taking part in the NASA Explorer Schools (NES) program. Center Director Jim Kennedy and Wolf visited the school to share America’s new vision for space exploration with the next generation of explorers. They talked with students about our destiny as explorers, NASA’s stepping stone approach to exploring Earth, the Moon, Mars and beyond, how space impacts our lives, and how people and machines rely on each other in space.