JSC2001-00957 (10 April 2001) --- Astronaut Scott J. Horowitz, mission commander.

S92-44932 (8 Sept. 1992) --- Astronaut Scott J. Horowitz, pilot.

Scott J. Horowitz, NASA Associate Administrator for Exploration Systems, center, announces to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Horowitz was joined by NASA Administrator Michael Griffin, left, and Jeff Hanley, Constellation Program Manager. Photo Credit: (NASA/Bill Ingalls)

NASA Associate Administrator for Exploration Systems Scott J. Horowitz answers reporters questions during the fiscal year 2007 news conference, Monday, Feb. 6, 2006, at NASA Headquarters in Washington. NASA Administrator Michael Griffin was joined by the heads of NASA's four mission directorates to explain how the proposed $16.8 billion dollar budget supports the Vision for Space Exploration. The budget represents a 3.2% increase above the fiscal year 2006 appropriated budget. Photo Credit: (NASA/Bill Ingalls)

Scott J. Horowitz, NASA Associate Administrator for Exploration Systems, announces to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

Scott J. Horowitz, NASA Associate Administrator for Exploration Systems, announces to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

S82-E-5437 (11-21 Feb. 1997) --- Astronaut Scott J. Horowitz mans the pilot's station of the Space Shuttle Discovery. As well as serving as pilot for NASA's second mission to service the Hubble Space Telescope (HST), Horowitz was instrumental in the crafting of patch pieces to cover worn insulation on the giant telescopes surface. This view was taken with an Electronic Still Camera (ESC).

Scott Horowitz, NASA Associate Administrator for Exploration Systems, center, speaks as Jeff Hanley, Constellation Program Manager, right, looks on during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

Scott Horowitz, NASA Associate Administrator for Exploration Systems, left, and Jeff Hanley, Constellation Program Manager, are seen during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

Scott Horowitz, NASA Associate Administrator for Exploration Systems, left, looks on as Jeff Hanley, Constellation Program Manager, speaks during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

Scott Horowitz, NASA Associate Administrator for Exploration Systems, left, looks on as Jeff Hanley, Constellation Program Manager, speaks during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, looks on as Scott Horowitz, NASA Associate Administrator for Exploration Systems speaks during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

S82-E-5436 (15 Feb. 1997) --- Astronaut Scott J. Horowitz, STS-82 pilot, at pilot's station during second Extravehicular Activity (EVA) by two of his crew mates. This view was taken with an Electronic Still Camera (ESC).

NASA Associate Administrator for Space Operations William Gerstenmaier, right, and NASA Associate Administrator for Exploration Systems Scott J. Horowitz talk during the fiscal year 2007 news conference, Monday, Feb. 6, 2006, at NASA Headquarters in Washington. NASA Administrator Michael Griffin was joined by the heads of NASA's four mission directorates to explain how the proposed $16.8 billion dollar budget supports the Vision for Space Exploration. The budget represents a 3.2% increase above the fiscal year 2006 appropriated budget. Photo Credit: (NASA/Bill Ingalls)

S82-E-5597 (17 Feb. 1997) --- Astronaut Scott J. Horowitz at pilot's station works with a hand-fashioned loop fastener device to be used in support of the additional STS-82 Extravehicular Activity (EVA) to service Hubble Space Telescope (HST). Note sketches overhead which were sent by ground controllers to guide the pilot's engineering of the task. This view was taken with an Electronic Still Camera (ESC).

NASA Administrator Michael Griffin, seated left, Scott Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, are seen during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Dean Acosta, NASA Deputy Assistant Administrator and Press Secretary, far left, moderates the program. Photo Credit (NASA/Bill Ingalls)

Jeff Hanley, Constellation Program Manager, right, and Scott J. Horowitz, NASA Associate Administrator for Exploration Systems announce to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

Dean Acosta, NASA Deputy Assistant Administrator and Press Secretary, left, moderates a NASA Update with NASA Administrator Michael Griffin, second from left, Scott J. Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, Scott Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, are seen during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, Scott Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, are seen during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

Scott J. Horowitz, NASA Associate Administrator for Exploration Systems, left, and Jeff Hanley, Constellation Program Manager, announce to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, Scott Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, are seen during a press conference outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

Jeff Hanley, Constellation Program Manager, right, announces to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Hanley is joined by Scott J. Horowitz, NASA Associate Administrator for Exploration Systems and NASA Administrator Michael Griffin, left. Photo Credit: (NASA/Bill Ingalls)

Dean Acosta, NASA Deputy Assistant Administrator and Press Secretary, left, moderates a NASA Update with NASA Administrator Michael Griffin, second from left, Scott J. Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, Scott J. Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, announce to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, announces to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. He is joined by Scott J. Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Michael Griffin, left, and Scott J. Horowitz, NASA Associate Administrator for Exploration Systems, announce to NASA employees and members of the media the responsibilities of the NASA centers associated with the Constellation Program for robotic and human Moon and Mars exploration on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Michael Griffin outlines the President's budget for fiscal year 2007 during a news conference, Monday, Feb. 6, 2006, at NASA Headquarters in Washington. Griffin was joined by the heads of NASA's four mission directorates to explain how the proposed $16.8 billion dollar budget supports the Vision for Space Exploration. Seated left to right: Scott Horowitz, NASA Associate Administrator for Exploration Systems, William Gerstenmaier, NASA Associate Administrator for Space Operations, Lisa Porter, NASA Associate Administrator for Aeronautics Research and Mary Cleave, NASA Associate Administrator for Science. Photo Credit: (NASA/Bill Ingalls)

KENNEDY SPACE CENTER, FLA. - STS-82 Pilot Scott J. "Doc" Horowitz flashes a wide grin for photographers after landing his T-38 jet at KSC's Shuttle Landing Facility. Horowitz and the other six members of the STS-82 crew came from their home base at Johnson Space Center in Houston, Texas, to spend the last few days before launch at KSC. STS-82 is scheduled for liftoff on Feb. 11 during a 65-minute launch window that opens at 3:56 a.m. EST. The 10-day flight aboard the Space Shuttle Discovery will be the second Hubble Space Telescope (HST) servicing mission.

STS-82 Pilot Scott J. "Doc" Horowitz prepares to enter the Space Shuttle Discovery at Launch Pad 39A, with the assistance of white room closeout crew member James Davis

JSC2000-04606 (30 May 2000) --- Astronaut Scott J. Horowitz, pilot, speaks to a crowd at the crew-welcoming ceremony at Ellington Field on the day following the completion of the STS-101 mission.

JSC2001-E-08815 (26 March 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, prepares for a flight in a T-38 trainer jet at Ellington Field near Johnson Space Center (JSC).

JSC2001-E-08814 (26 March 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, prepares for a flight in a T-38 trainer jet at Ellington Field near Johnson Space Center (JSC).

JSC2001-E-08824 (26 March 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, prepares for a flight in a T-38 trainer jet at Ellington Field near Johnson Space Center (JSC).

JSC2001-E-08819 (26 March 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, prepares for a flight in a T-38 trainer jet at Ellington Field near Johnson Space Center (JSC).

ISS003-E-6180 (August 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, prepares the STS-105 crew patch to be added to the growing collection of those representing Shuttle crews who have worked on the International Space Station (ISS). Horowitz is located in the Unity node of the ISS. This image was taken with a digital still camera.

STS075-333-032 (22 Feb.- 9 March 1996) --- Astronaut Scott J. Horowitz, pilot, looks over tools he may use to perform an Inflight Maintenance (IFM) chore on the mid deck of the Earth-orbiting space shuttle Columbia. The glovebox facility is at upper left. Horowitz joined four other astronauts and an international payload specialist for 16 days of scientific research in Earth-orbit.

JSC2000-07460 (11 December 2000) --- Astronaut Scott J. Horowitz, STS-105 mission commander, floats in a small life raft during an emergency egress training session at the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center (JSC). This summer, Horowitz will join four other astronauts and two cosmonauts for a mission to the International Space Station (ISS).

STS-82 Pilot Scott J. "Doc" Horowitz puts on a glove of his launch and entry suit with assistance from a suit technician in the Operations and Checkout Building. This is Horowitz’s second space flight. He and the six other crew members will depart shortly for Launch Pad 39A, where the Space Shuttle Discovery awaits liftoff on a 10-day mission to service the orbiting Hubble Space Telescope (HST). This will be the second HST servicing mission. Four back-to-back spacewalks are planned

STS075-322-012 (9 March 1996) --- Seated at the pilot's station, astronaut Scott J. Horowitz uses a mirror to monitor the vertical stabilizer and the aft cargo bay area during the entry phase of the flight. Horowitz, pilot, joined four other astronauts and an international payload specialist for 16 days of scientific research in Earth-orbit.

JSC2000-07661 (19 December 2000) --- Astronaut Scott J. Horowitz, STS-105 mission commander, dons a training version of the full-pressure launch and entry suit prior to a training session in one of the trainer/mockups (out of frame) in the Jake Garn Simulation and Training Facility at Johnson Space Center (JSC). This summer, Horowitz will join four other astronauts and two cosmonauts for a mission to the International Space Station (ISS).

S96-18553 (30 Oct. 1996) --- Astronaut Scott J. Horowitz, pilot, gets help with his launch and entry suit prior to a training session in JSC's systems integration facility. Wearing training versions of the partial pressure launch and entry escape suit, Horowitz and his crewmates went on to simulate an emergency ejection, using the escape pole system on the mid deck, as well as other phases of their scheduled February mission.

JSC2001-E-08811 (26 March 2001) --- Astronauts Daniel T. Barry (left), Scott J. Horowitz, Frederick W. Sturckow, and Patrick G. Forrester, are photographed as they walk to the nearby flight line of the T-38 trainer jets at Ellington Field near Johnson Space Center (JSC).

ISS003-E-6193 (August 2001) --- Astronauts James S. Voss (left), Expedition Two flight engineer, Patrick G. Forrester, STS-105 mission specialist, and Scott J. Horowitz, mission commander, exchange greetings in the Unity node on the International Space Station (ISS). This image was taken with a digital still camera.

STS105-E-5001 (10 August 2001) --- Astronaut Scott J. Horowitz, STS-105 commander, checks flight notes at the commander's station on the flight deck of the Earth-orbiting Space Shuttle Discovery. The image was recorded with a digital still camera.

ISS003-E-5185 (17 August 2001) --- Astronauts Daniel T. Barry (left), STS-105 mission specialist, and Scott J. Horowitz, commander, pause from their daily activities to pose for this photo in the Destiny laboratory while visiting the International Space Station (ISS). This image was taken with a digital still camera.

STS105-E-5389 (20 August 2001) --- Scott J. Horowitz (center), STS-105 commander, and Daniel T. Barry, mission specialist, pose among the stowage bags and Sokol suits in the Soyuz spacecraft which is docked to the International Space Station (ISS). This image was taken with a digital still camera.

STS105-E-5002 (10 August 2001) --- Astronaut Scott J. Horowitz, STS-105 commander, checks flight notes at the commander's station on the flight deck of the Earth-orbiting Space Shuttle Discovery. The image was recorded with a digital still camera.

ISS003-E-6189 (August 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, adds the STS-105 crew patch to the growing collection of those representing Shuttle crews who have worked on the International Space Station (ISS). This image was taken with a digital still camera.

S82-E-5047 (12 Feb. 1997) --- Astronaut Scott J. Horowitz, STS-82 pilot, inputs data on onboard general purpose computer on the Space Shuttle Discovery's flight deck. This view was taken with an Electronic Still Camera (ESC).

JSC2000-04594 (30 May 2000) --- Astronaut Scott J. Horowitz, pilot, reunites with wife Lisa Marie and young daughter following the STS-101 crew return. A welcome-home ceremony followed the arrival of the six astronauts and one cosmonaut at Ellington Field on the day after the landing of the Space Shuttle Atlantis in Florida.

JSC2000-07459 (11 December 2000) --- Astronaut Scott J. Horowitz, STS-105 commander, simulates a parachute drop into water during emergency bailout training with his crew members. The exercise took place in the Neutral Buoyancy Laboratory (NBL) near the Johnson Space Center (JSC).

JSC2001-E-08808 (26 March 2001) --- Astronauts Scott J. Horowitz (foreground), STS-105 mission commander, and Patrick G. Forrester, mission specialist, is photographed at the check out desk not far removed from the flight line of the T-38 trainer jets at Ellington Field near Johnson Space Center (JSC).

STS082-350-021 (11-21 Feb. 1997) --- On Discovery's middeck, astronaut Scott J. Horowitz, STS-82 pilot, works on one of the multi-layer insulation (MLI) patches to be used by two crew mates on an upcoming space walk to repair worn insulation on the Hubble Space Telescope (HST).

ISS003-E-6185 (August 2001) --- Astronauts Frederick W. (Rick) Sturckow (left), STS-105 pilot, and Scott J. Horowitz, mission commander, add their names to the ship’s log of visitors in the Unity node on the International Space Station (ISS). This image was taken with a digital still camera.

STS075-303-007 (9 March 1996) --- Astronauts Andrew M. Allen (left), mission commander, and Scott J. Horowitz (partially visible at right), pilot, have just completed the landing phase of the STS-75 flight. The Space Shuttle Columbia is now securely on Runway 33 at the Kennedy Space Center (KSC).

ISS003-E-6191 (August 2001) --- Astronauts James S. Voss (left), Expedition Two flight engineer, Patrick G. Forrester, STS-105 mission specialist, and Scott J. Horowitz, mission commander, are photographed in the Unity node on the International Space Station (ISS). This image was taken with a digital still camera.

STS105-E-5061 (12 August 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, looks over a checklist on the aft flight deck of the Space Shuttle Discovery during rendezvous operations with the International Space Station (ISS). The image was recorded with a digital still camera.

KENNEDY SPACE CENTER, FLA. -- At SPACEHAB, in Cape Canaveral, looking over equipment for their mission are (far left) STS-101 Pilot Scott J. "Doc" Horowitz (Ph.D). and (second from right) Mission Specialist Edward Tsang Lu. Horowitz, Lu and other members of the crew are taking part in a Crew Equipment Interface Test, which gives them an opportunity to look over equipment and payloads that will fly on the mission. Space Shuttle Atlantis will be carrying the SPACEHAB Double Module, which carries internal logistics and resupply cargo for station outfitting. Launch of Atlantis on mission STS-101 is scheduled no earlier than April 13, 2000

STS105-304-025 (10-22 August 2001) --- Astronaut James S. Voss, outgoing Space Station flight engineer, performs a task at a work station in the Destiny laboratory as a "guest" arrives from the Space Shuttle Discovery. Astronaut Scott J. Horowitz, STS-105 mission commander, floats through the hatchway leading to the Unity node. A 35mm camera, equipped with a "fish-eye" lens, was used to record the image. Voss, who had spent the last five months aboard the orbital outpost with his two Expedition Two crew mates, later joined Horowitz and his crew when they returned to Earth on August 22.

KENNEDY SPACE CENTER, FLA. -- At SPACEHAB, in Cape Canaveral, looking over equipment for their mission are (far left) STS-101 Pilot Scott J. "Doc" Horowitz (Ph.D). and (second from right) Mission Specialist Edward Tsang Lu. Horowitz, Lu and other members of the crew are taking part in a Crew Equipment Interface Test, which gives them an opportunity to look over equipment and payloads that will fly on the mission. Space Shuttle Atlantis will be carrying the SPACEHAB Double Module, which carries internal logistics and resupply cargo for station outfitting. Launch of Atlantis on mission STS-101 is scheduled no earlier than April 13, 2000

KENNEDY SPACE CENTER, FLA. -- At SPACEHAB, in Cape Canaveral, looking over the Russian crane, Strela, are STS-101 Mission Specialist Edward Tsang Lu (left) and Pilot Scott J. "Doc" Horowitz (Ph.D). Lu, Horowitz and other members of the crew are taking part in a Crew Equipment Interface Test, which gives them an opportunity to look over equipment and payloads that will fly on the mission. Space Shuttle Atlantis will be carrying the SPACEHAB Double Module, which carries internal logistics and resupply cargo for station outfitting. Launch of Atlantis on mission STS-101 is scheduled no earlier than April 13, 2000

KENNEDY SPACE CENTER, Fla. -- STS-105 Commander Scott Horowitz checks over the T-38 before a morning training flight. Horowitz and the STS-105 crew are preparing for launch on Aug. 9. On mission STS-105, Discovery will be transporting the Expedition Three crew and several payloads and scientific experiments to the Space Station. The Early Ammonia Servicer (EAS) tank, which contains spare ammonia for the Station’s cooling system and will support the thermal control subsystems until a permanent system is activated, will be attached to the Station during two spacewalks. The three-member Expedition Two crew will be returning to Earth aboard Discovery after a five-month stay on the Station

KENNEDY SPACE CENTER, FLA. -- At SPACEHAB, in Cape Canaveral, looking over the Russian crane, Strela, are STS-101 Mission Specialist Edward Tsang Lu (left) and Pilot Scott J. "Doc" Horowitz (Ph.D). Lu, Horowitz and other members of the crew are taking part in a Crew Equipment Interface Test, which gives them an opportunity to look over equipment and payloads that will fly on the mission. Space Shuttle Atlantis will be carrying the SPACEHAB Double Module, which carries internal logistics and resupply cargo for station outfitting. Launch of Atlantis on mission STS-101 is scheduled no earlier than April 13, 2000

JSC2001-E-25806 (23 August 2001) --- Scott J. Horowitz, STS-105 commander, followed by his daughter and wife, step off of the Gulfstream I aircraft during the STS-105 and Expedition Two crew return ceremonies at Ellington Field. The STS-105 crew delivered the Expedition Three crew and supplies to the International Space Station (ISS) and brought the Expedition Two crew back to Earth.

Dean Acosta, NASA Deputy Assistant Administrator and Press Secretary, moderates a press conference with NASA Administrator Michael Griffin Scott Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

STS105-E-5091 (12 August 2001) --- Frank L. Culbertson, Jr., Expedition Three mission commander, assists Scott J. Horowitz (out of frame to the right), STS-105 commander, in opening Space Shuttle Discovery's airlock hatch leading to the International Space Station (ISS). Culbertson and cosmonauts Mikhail Tyurin and Vladimir N. Dezhurov will be replacing the Expedition Two crew as residents aboard the ISS. This image was taken with a digital still camera.

STS-105-E-5120 (12 August 2001) --- Scott J. Horowitz, STS-105 commander, enters the Zvezda Service Module with open arms during the initial ingress into the International Space Station (ISS) for the STS-105 mission. Patrick G. Forrester, STS-105 mission specialist, follows closely behind. This image was taken with a digital still camera.

STS105-E-5092 (12 August 2001) --- Scott J. Horowitz (bottom), STS-105 commander, and Frank L. Culbertson, Jr., Expedition Three mission commander, prepare to open Space Shuttle Discovery's airlock hatch leading to the International Space Station (ISS). Culbertson and cosmonauts Mikhail Tyurin and Vladimir N. Dezhurov will be replacing the Expedition Two crew as residents aboard the ISS. This image was taken with a digital still camera.

JSC2001-E-25825 (23 August 2001) --- Scott J. Horowitz, STS-105 commander, signs an autograph for a young visitor in Hangar 990 at Ellington Field during the STS-105 and Expedition Two crew return ceremonies. The STS-105 crew delivered the Expedition Three crew and supplies to the International Space Station (ISS) and brought the Expedition Two crew back to Earth.

STS105-717-060 (17 August 2001) --- The four STS-105 crew members pose for the traditional in-flight crew portrait in the Destiny laboratory on the International Space Station (ISS). Clockwise from left bottom, are Scott J. Horowitz and Frederick W. (Rick) Sturckow, commander and pilot, respectively; Patrick G. Forrester and Daniel T. Barry, both mission specialists.

ISS003-E-5188 (17 August 2001) --- Astronaut James S. Voss, Expedition Two flight engineer, photographs astronauts Scott J. Horowitz (front left), STS-105 mission commander, Frederick W. (Rick) Sturckow, pilot, Daniel T. Barry (back left), and Patrick G. Forrester, both mission specialists, in the Destiny laboratory on the International Space Station (ISS). This image was taken with a digital still camera.

STS105-E-5364 (20 August 2001) --- Frederick W. Sturckow (center), STS-105 pilot, talks with Daniel T. Barry, mission specialist, in Unity Node 1. In the background, Scott J. Horowitz, STS-105 commander, is trying on Vladimir N. Dezhurov's, Expedition Three flight engineer, Russian Sokol suit. This image was taken with a digital still camera.

STS105-E-5089 (12 August 2001) --- Scott J. Horowitz (left), STS-105 commander, and Frank L. Culbertson, Jr., Expedition Three mission commander, prepare to open Space Shuttle Discovery's airlock hatch leading to the International Space Station (ISS). Culbertson and cosmonauts Mikhail Tyurin and Vladimir N. Dezhurov will be replacing the Expedition Two crew as residents aboard the ISS. This image was taken with a digital still camera.

ISS003-E-5186 (17 August 2001) --- Astronauts Scott J. Horowitz (bottom left), STS-105 mission commander, Frederick W. (Rick) Sturckow, pilot, Daniel T. Barry (top left), and Patrick G. Forrester, both mission specialists, pause from their daily activities to pose for this photo in the Destiny laboratory while visiting the International Space Station (ISS). This image was taken with a digital still camera.

KENNEDY SPACE CENTER, FLA. -- Just inside the open hatch of the SPACEHAB module are (left to right) STS-101 crew members Mission Specialists Jeffrey N. Williams and Mary Ellen Weber (Ph.D.), Commander James Donald Halsell Jr., and Pilot Scott "Doc" Horowitz (Ph.D.). The crew is taking part in familiarization activities at the SPACEHAB facility. Mission STS-101 is the third flight in construction of the International Space Station. The 11-day mission is targeted for launch on December 2, 1999, at Launch Pad 39A

KENNEDY SPACE CENTER, FLA. -- Inside the SPACEHAB module, members of the STS-101 crew look at equipment during familiarization activities. From left are Mission Specialist Jeffrey N. Williams , Pilot Scott J. "Doc" Horowitz (Ph.D.), and Commander James Donald Halsell Jr., with Chris Jaskoika, of Boeing SPACEHAB. Mission STS-101 is the third flight in construction of the International Space Station. The 11-day mission is targeted for launch on December 2, 1999, at Launch Pad 39A

S82-E-5644 (17 Feb. 1997) --- Inside the Space Shuttle Discovery's cabin, astronauts Scott J. Horowitz (left), STS-82 pilot, and Mark C. Lee, payload commander, monitor the mission's fourth Extravehicular Activity (EVA) to service Hubble Space Telescope (HST). This view was taken with an Electronic Still Camera (ESC).

KENNEDY SPACE CENTER, FLA. -- Inside the SPACEHAB module, Chris Jaskoika (left), with Boeing SPACEHAB, works with members of the STS-101 crew during familiarization activities. Next to him are (left to right) Commander James Donald Halsell Jr., Pilot Scott "Doc" Horowitz (Ph.D.), and Mission Specialists Mary Ellen Weber (Ph.D.) and Jeffrey N. Williams. Mission STS-101 is the third flight in construction of the International Space Station. The 11-day mission is targeted for launch on December 2, 1999, at Launch Pad 39A

Members of the media listen during a press conference with NASA Administrator Michael Griffin, Scott Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, outlining specific center responsibilities associated with the Constellation Program for robotic and human Moon and Mars exploration, Monday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit (NASA/Bill Ingalls)

JSC2001-00751 (15 March 2001) --- Astronaut Scott J. Horowitz, STS-105 mission commander, uses the virtual reality lab at the Johnson Space Center (JSC) to train for his duties aboard the Space Shuttle Discovery. This type of computer interface paired with virtual reality training hardware and software helps to prepare the entire team for dealing with International Space Station (ISS) elements.

ISS003-E-5190 (17 August 2001) --- The STS-105 crew members pause for this group photo in the Destiny laboratory on the International Space Station (ISS). Clockwise from bottom are, Scott J. Horowitz and Frederick W. (Rick) Sturckow, mission commander and pilot, respectively, Patrick G. Forrester and Daniel T. Barry, both mission specialists. This image was taken with a digital still camera.

STS-105-E-5121 (12 August 2001) --- Yury V. Usachev of Rosaviakosmos, Expedition Two mission commander, and Scott J. Horowitz, STS-105 commander, embrace in the Zvezda Service Module with open arms during the initial ingress into the International Space Station (ISS) for the STS-105 mission. This image was taken with a digital still camera.

KENNEDY SPACE CENTER, FLA. -- STS-82 Terminal Countdown Demonstration Test (TCDT). Crew members are Mission Commander Kenneth D. Bowersox, Pilot Scott J. "Doc" Horowitz, Payload Commander Mark C. Lee, and Mission Specialists Steven L. Smith, Gregory J. Harbaugh, Joseph R. "Joe" Tanner and Steven A. Hawley.

JSC2001-E-25829 (23 August 2001) --- Scott J. Horowitz, STS-105 commander, signs an autograph for two young visitors in Hangar 990 at Ellington Field during the STS-105 and Expedition Two crew return ceremonies. The STS-105 crew delivered the Expedition Three crew and supplies to the International Space Station (ISS) and brought the Expedition Two crew back to Earth.

STS105-E-5198 (15 August 2001) --- Ten astronauts and cosmonauts dine in the Zvezda Service Module. Clockwise from lower left corner are Scott J. Horowitz, Frederick W. (Rick) Sturckow, Vladimir N. Dezhurov, Mikhail Tyurin, Susan J. Helms, Frank L. Culbertson, Yury V. Usachev, James S. Voss and Patrick G. Forrester. Daniel T. Barry is out of frame at lower right. Dezhurov, Tyurin and Usachev represent Rosaviakosmos. The image was recorded with a digital still camera.

KENNEDY SPACE CENTER, Fla. --STS-82 Mission Commander Kenneth D. Bowersox, at right, and Pilot Scott J. "Doc" Horowitz practice emergency egress procedures in a slidewire basket at Launch Pad 39A as part of Terminal Countdown Demonstration Test (TCDT) activities. STS-82 will be the second Hubble Space Telescope servicing mission. Liftoff is targeted for Feb. 11

S96-18552 (30 Oct. 1996) --- Astronaut Kenneth D. Bowersox (left), STS-82 mission commander, chats with astronaut Scott J. Horowitz prior to an emergency bailout training session in JSC's systems integration facility. Wearing training versions of the partial pressure launch and entry escape suit, Bowersox and his crew simulated an emergency ejection, using the escape pole system on the mid deck, as well as other phases of their scheduled February mission.

S82-E-5686 (17 Feb. 1997) --- Astronaut Scott J. Horowitz, STS-82 pilot, shows the hand-crafted thermal insulation blanket to support the goal of the final Extravehicular Activity (EVA) to cover tears in Hubble Space Telescope's (HST) insulation caused by changes in thermal conditions. This view was taken with an Electronic Still Camera (ESC).

JSC2001-E-25816 (23 August 2001) --- Scott J. Horowitz, STS-105 commander, speaks from the podium in Hangar 990 at Ellington Field during the STS-105 and Expedition Two crew return ceremonies. The STS-105 crew delivered the Expedition Three crew and supplies to the International Space Station (ISS) and brought the Expedition Two crew back to Earth.

KENNEDY SPACE CENTER, FLA. -- During Crew Equipment Interface Test activities, STS-105 Commander Scott “Doc” Horowitz checks out the orbiter Discovery in Orbiter Processing Facility bay 2. STS-105 is the 11th mission to the International Space Station. The payload includes the Multi-Purpose Logistics Module Leonardo, which was built by the Italian Space Agency. Leonardo will be outfitted with 12 racks of experiments and equipment. Discovery is scheduled to launch July 12 from Launch Pad 39A

STS105-314-024 (10-22 August 2001) --- Astronaut Frederick W. (Rick) Sturckow (center), STS-105 pilot, is about to add his name to the log of visitors to the International Space Station (ISS) during a brief break in the orbital outpost's Unity node. Astronaut Scott J. Horowitz, STS-105 mission commander, is at right.

Dean Acosta, NASA Deputy Assistant Administrator and Press Secretary, left, moderates a NASA Update with NASA Administrator Michael Griffin, Scott J. Horowitz, NASA Associate Administrator for Exploration Systems and Jeff Hanley, Constellation Program Manager, right, on Wednesday, June 5, 2006, at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

S96-18556 (30 Oct. 1996) --- Astronauts Scott J. Horowitz (standing) and Kenneth D. Bowersox wind up suit donning for a training session in JSC's systems integration facility. Wearing training versions of the partial pressure launch and entry escape suit, the STS-82 pilot and mission commander joined their crewmates in simulating an emergency ejection, using an escape pole on the mid deck, as well as other phases of their scheduled February mission.

In the Operations and Checkout Building, STS-101 Pilot Scott J. Horowitz gets help suiting up before heading to Launch Pad 39A and launch of Space Shuttle Atlantis. The mission will take the crew to the International Space Station to deliver logistics and supplies and to prepare the Station for the arrival of the Zvezda Service Module, expected to be launched by Russia in July 2000. Also, the crew will conduct one space walk. This will be the third assembly flight to the Space Station

STS082-S-002 (December 1996) --- These seven astronauts are prime crew members for NASA’s STS-82 mission. They are, on the front row, from the left, Kenneth D. Bowersox, Steven A. Hawley and Scott J. Horowitz. On the back row are Joseph R. Tanner, Gregory J. Harbaugh; Mark C. Lee and Steven L. Smith. Bowersox and Horowitz are commander and pilot, respectively, with Lee assigned as payload commander. Hawley, Harbaugh, Smith and Tanner are mission specialists. The seven are pictured with a small model of the Hubble Space Telescope (HST), which they will be paying a visit representing the second HST maintenance mission. Bowersox was pilot for the STS-61 mission, which performed the first maintenance on HST. Hawley was a mission specialist on STS-31, the mission whose astronauts originally deployed the HST.

KENNEDY SPACE CENTER, FLA. -- At SPACEHAB, in Cape Canaveral, Fla., members of the STS-101 crew take part in Crew Equipment Interface Test (CEIT) activities, learning about some of the equipment they will be working with on their mission to the International Space Station. Looking over one of the elements are (left to right) Mission Specialists James Voss and Susan Helms, Pilot Scott Horowitz, and Mission Specialist Yuri Usachev of Russia. Seen behind Horowitz is Commander James Halsell. Also taking part in the CEIT are Mission Specialists Mary Ellen Weber and Jeffrey Williams. The STS-101 crew will be responsible for preparing the Space Station for the arrival of the Zvezda Service Module, expected to be launched by Russia in July 2000. Also, the crew will conduct one space walk to perform maintenance on the Space Station and deliver logistics and supplies. This will be the third assembly flight for the Space Station. STS-101 is scheduled to launch no earlier than April 13 from Launch Pad 39A

KENNEDY SPACE CENTER, FLA. -- At SPACEHAB, in Cape Canaveral, Fla., members of the STS-101 crew take part in Crew Equipment Interface Test (CEIT) activities, learning about some of the equipment they will be working with on their mission to the International Space Station. Looking over one of the elements are (left to right) Mission Specialists James Voss and Susan Helms, Pilot Scott Horowitz, and Mission Specialist Yuri Usachev of Russia. Seen behind Horowitz is Commander James Halsell. Also taking part in the CEIT are Mission Specialists Mary Ellen Weber and Jeffrey Williams. The STS-101 crew will be responsible for preparing the Space Station for the arrival of the Zvezda Service Module, expected to be launched by Russia in July 2000. Also, the crew will conduct one space walk to perform maintenance on the Space Station and deliver logistics and supplies. This will be the third assembly flight for the Space Station. STS-101 is scheduled to launch no earlier than April 13 from Launch Pad 39A

KENNEDY SPACE CENTER, Fla. -- At the 195-foot level of the Fixed Service Structure on Launch Pad 39A, the STS-101 crew take part in training during a Terminal Countdown Demonstration Test (TCDT). Activities during TCDT include emergency egress from the orbiter and a dress rehearsal for launch. Standing left to right are Pilot Scott Horowitz, Jeffrey Williams, Commander James Halsell, and Mission Specialists Yury Usachev, James Voss, Mary Ellen Weber, and Susan Helms. At right is trainer Capt. George Hoggard of the KSC/CCAS Fire Department. Not seen in the photo is Pilot Scott Horowitz. During their mission to the International Space Station, the STS-101 crew will be delivering logistics and supplies, plus preparing the Station for the arrival of the Zvezda Service Module, expected to be launched by Russia in July 2000. Also, the crew will conduct one space walk to perform maintenance on the Space Station. This will be the third assembly flight for the Space Station. STS-101 is scheduled to launch April 24 at 4:15 p.m. from Launch Pad 39A

KENNEDY SPACE CENTER, Fla. -- At the 195-foot level of the Fixed Service Structure on Launch Pad 39A, the STS-101 crew take part in training during a Terminal Countdown Demonstration Test (TCDT). Activities during TCDT include emergency egress from the orbiter and a dress rehearsal for launch. Standing left to right are Pilot Scott Horowitz, Jeffrey Williams, Commander James Halsell, and Mission Specialists Yury Usachev, James Voss, Mary Ellen Weber, and Susan Helms. At right is trainer Capt. George Hoggard of the KSC/CCAS Fire Department. Not seen in the photo is Pilot Scott Horowitz. During their mission to the International Space Station, the STS-101 crew will be delivering logistics and supplies, plus preparing the Station for the arrival of the Zvezda Service Module, expected to be launched by Russia in July 2000. Also, the crew will conduct one space walk to perform maintenance on the Space Station. This will be the third assembly flight for the Space Station. STS-101 is scheduled to launch April 24 at 4:15 p.m. from Launch Pad 39A