Associate Administrator for NASA's Science Mission Directorate and former astronaut John M. Grunsfeld talked to the attendees of the The American Geophysical Union (AGU) meet at the Moscone Center in San Francisco, California. New results presented at the meeting show atmospheric rivers, significant sources of rainfall, tend to intensify during Nino events, and this years strong El Nino likely will bring more precipitation to California and some relief for the drought.

S92-45921 (21 Sept. 1992) --- Astronaut John M. Grunsfeld.

JSC2000-06749 (October 2000) --- Astronaut John M. Grunsfeld, mission specialist.

JSC2000-06750 (October 2000) --- Astronaut John M. Grunsfeld, mission specialist.

JOHNSON SPACE CENTER, HOUSTON, TEXAS -- (JSC 2000-06750) -- Official portrait of astronaut John M. Grunsfeld, Mission Specialist

S99-16048 (28 December 1999) --- Astronaut John M. Grunsfeld speaks at crew return ceremony at Ellington Field.

JOHNSON SPACE CENTER, HOUSTON, TEXAS -- (JSC 2000-06750) -- Official portrait of astronaut John M. Grunsfeld, Mission Specialist

STS109-E-5290 (4 March 2002) --- Astronaut John M. Grunsfeld, payload commander, returns to the shirt-sleeve environment of the Space Shuttle Columbia's aft flight deck. Having completed a seven-hour space walk, Grunsfeld enters data in a lap top computer. Astronauts Grunsfeld and Richard M. Linnehan successfully replaced the Hubble Space Telescope's starboard solar array and are scheduled for two more space walks this week. The image was recorded with a digital still camera.

STS103-332-021 (19-27 December 1999) --- Astronaut John M. Grunsfeld, who.participated in two of the three STS-103 space walks to service the Hubble Space Telescope (HST), dons an extravehicular mobility unit (EMU) space suit for one of the walks. Grunsfeld is wearing the liquid cooling and ventilation garment that complements the EMU.

STS109-E-5448 (4 March 2002) --- Astronaut John M. Grunsfeld, payload commander, peers into the crew cabin of the Space Shuttle Columbia during the first STS-109 extravehicular activity (EVA-1) on March 4, 2002. Grunsfeld's helmet visor displays a mirrored image of the Earth's hemisphere. Astronauts Grunsfeld and Richard M. Linnehan replaced the starboard solar array on the Hubble Space Telescope (HST) on the first of five scheduled STS-109 space walks. The lower portion of the giant telescope can be seen over Grunsfeld's left shoulder. The image was recorded with a digital still camera by a crewmate on shuttle's aft flight deck.

STS109-E-5904 (9 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, holds a camera on the aft flight deck of the Space Shuttle Columbia. The image was recorded with a digital still camera.

JSC2002-E-05100 (15 February 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, responds to a query during a pre-flight press conference at Johnson Space Center (JSC).

JSC2002-E-09341 (13 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, speaks from the lectern in Hangar 990 at Ellington Field during the crew return ceremonies.

JSC2006-E-47125 (31 Oct. 2006) --- Astronaut John M. Grunsfeld, STS-125 mission specialist for the newly announced final shuttle crew to visit and work on the Hubble Space Telescope.

Prince Philip, left, speaks with veteran space walkers John M. Grunsfeld, center, and Michael J. Massimino at NASA's Goddard Space Flight Center. Photo Credit: (NASA/Chris Gunn)

STS109-322-021 (6 March 2002) --- Astronaut Richard M. Linnehan, STS-109 mission specialist, participates in the third of five space walks to perform work on the Hubble Space Telescope (HST). The third STS-109 extravehicular activity (EVA) marked the second of three for Linnehan, who was joined by astronaut John M. Grunsfeld on all three. On this particular walk, astronauts Linnehan and Grunsfeld turned off the telescope in order to replace the heart of it power system.

JSC2002-E-05104 (15 February 2002) --- The STS-109 crewmembers are photographed during a pre-flight press conference at Johnson Space Center (JSC). From the left are astronauts Michael J. Massimino, James H. Newman, Richard M. Linnehan, John M. Grunsfeld, Nancy J. Currie, Duane G. Carey, and Scott D. Altman. Altman and Carey are mission commander and pilot, respectively. Grunsfeld is payload commander and Currie, Linnehan, Newman and Massimino are mission specialists.

STS109-E-5660 (6 March 2002) --- Astronauts John M. Grunsfeld (top) and Richard M. Linnehan participate in a 6 hour, 48 minute space walk designed to install a new Power Control Unit (PCU) on the Hubble Space Telescope (HST). The two went on to replace the original unit launched with the telescope in April 1990. Grunsfeld is on the end of Columbia's Remote Manipulator System (RMS) robotic arm, controlled from inside the crew cabin by astronaut Nancy J. Currie. The image was recorded with a digital still camera.

STS109-E-5225 (4 March 2002) --- Astronaut John M. Grunsfeld, payload commander, signals readiness for the first the first of his assigned STS-109 space walks to perform work on the Hubble Space Telescope (HST). Astronauts Grunsfeld and Richard M. Linnehan moments later egressed the Space Shuttle Columbia's airlock, eventually replacing the giant telescope’s starboard solar array during a space walk that ended at 7:38 a.m. (CST) or 13:38 GMT March 4, 2002.

JSC2002-00514 (February 2002)--- The STS-109 flight crew poses with the ascent and entry shift team in the Shuttle Flight Control Room of the Johnson Space Center's Mission Control Center. Flight Director John Shannon holds the mission insignia. Members of the flight crew are astronauts Scott D. Altman, commander; Duane G. Carey, pilot; John M. Grunsfeld, payload commander; and James H. Newman, Nancy J. Currie, Richard M. Linnehan and Michael J. Massimino, all mission specialists. Currie stands to the right of the logo, followed by, left to right, Altman, Grunsfeld, Newman and Massimino. Linnehan and Carey are not pictured.

STS81-E-05107 (13 Jan. 1997) --- Astronaut John M. Grunsfeld, mission specialist, begins to activate a biorack glovebox aboard the Spacehab Double Module (DM) early on Day 2 of the mission. Grunsfeld is joined by five other NASA astronauts for the almost ten-day mission. The crew is scheduled to dock with Russia's Mir Space Station and pick up John E. Blaha, NASA astronaut who has been serving as a cosmonaut guest researcher since September 1996. Jerry M. Linenger (out of frame) will replace Blaha onboard Mir.

STS109-E-5420 (7 March 2002) --- Flight Day 7 of the STS-109 mission finds astronaut Richard M. Linnehan, mission specialist, back in the shirt-sleeve environment of the Space Shuttle Columbia, just like his space walking partner--astronaut John M. Grunsfeld (out of frame). Two of Grunsfeld's crewmates were about to begin the fourth space walk of the mission to perform special tasks on the Hubble Space Telescope (HST). Linnehan and Grunsfeld will participate in the fifth and final scheduled spacewalk in a little more than 24 hours. It will mark their third shared space walk for the current mission. This image was recorded with a digital still camera.

STS109-E-5447 (4 March 2002) --- Astronaut John M. Grunsfeld, payload commander, peers into the crew cabin of the Space Shuttle Columbia during the first STS-109 extravehicular activity (EVA-1) on March 4, 2002. Grunsfeld's helmet visor displays a mirrored image of the Earth's hemisphere. Astronauts Grunsfeld and Richard M. Linnehan replaced the starboard solar array on the Hubble Space Telescope (HST) on the first of five scheduled STS-109 space walks. The image was recorded with a digital still camera by a crewmate on shuttle's aft flight deck.

STS109-E-5381 (6 March 2002) --- Astronaut John M. Grunsfeld, payload commander, gives a "thumbs up" signal to crewmates inside Space Shuttle Columbia's crew cabin during a task on the Hubble Space Telescope (HST) in the cargo bay of the shuttle during the STS-109 mission's third space walk. The primary purpose of the extravehicular activity (EVA) of astronauts Grunsfeld and Richard M. Linnehan was to replace the Power Control Unit on the giant telescope. The image was recorded with a digital still camera by one of Grunsfeld's crew mates inside Columbia's cabin.

STS109-322-028 (6 March 2002) --- Astronaut Richard M. Linnehan, STS-109 mission specialist, participates in the third of five space walks to perform work on the Hubble Space Telescope (HST). Linnehan's sun shield reflects astronaut John M. Grunsfeld and the blue and white Earth's hemisphere as well as one of the telescope's new solar arrays. The third overall STS-109 extravehicular activity (EVA) marked the second of three for Linnehan and Grunsfeld, payload commander. On this particular walk, the two turned off the telescope in order to replace the power control unit or PCU--the heart of its power system. Grunsfeld took this photo with a 35mm camera.

STS109-322-029 (6 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, participates in the third of five space walks to perform work on the Hubble Space Telescope (HST). The third overall STS-109 extravehicular activity (EVA) marked the second of three for Grunsfeld, who was joined by astronaut Richard M. Linnehan on them all. On this particular walk, astronauts Grunsfeld and Linnehan turned off the telescope in order to replace its power control unit or PCU, the heart of the HST’s power system.

STS109-E-5380 (6 March 2002) --- Astronaut John M. Grunsfeld, payload commander, waves at a crewmate inside Space Shuttle Columbia's crew cabin during a brief break in work on the Hubble Space Telescope (HST) in the cargo bay of the shuttle during the STS-109 mission's third space walk. The primary purpose of the extravehicular activity (EVA) of astronauts Grunsfeld and Richard M. Linnehan was to replace the Power Control Unit on the giant telescope. The image was recorded with a digital still camera by one of Grunsfeld's crew mates inside Columbia's cabin.

STS109-E-5378 (6 March 2002) --- Astronaut John M. Grunsfeld, payload commander, works in tandem with astronaut Richard M. Linnehan, mission specialist, as the two devote their attention to the Power Control Unit replacement task on the giant Hubble Space Telescope (HST). Grunsfeld stands on a foot restraint on the end of the Space Shuttle Columbia's Remote Manipulator System (RMS). This marked the third of five scheduled STS-109 space walks and the mission's second extravehicular activity (EVA) for the tandem of Grunsfeld and Linnehan. It was completed at 9:16 a.m. CST (1516 GMT), Mar. 6, 2002. The image was recorded with a digital still camera.

STS109-E-5382 (6 March 2002) --- Astronaut John M. Grunsfeld, payload commander, waves at a crewmate inside Space Shuttle Columbia's crew cabin during a brief break in work on the Hubble Space Telescope (HST) in the cargo bay of the shuttle during the STS-109 mission's third space walk. The primary purpose of the extravehicular activity (EVA) of astronauts Grunsfeld and Richard M. Linnehan was to replace the Power Control Unit on the giant telescope. The image was recorded with a digital still camera by one of Grunsfeld's crew mates inside Columbia's cabin.

STS109-E-5377 (6 March 2002) --- Astronaut John M. Grunsfeld, payload commander, works in tandem with astronaut Richard M. Linnehan, mission specialist, as the two devote their attention to the Power Control Unit replacement task on the giant Hubble Space Telescope (HST). Grunsfeld stands on a foot restraint on the end of the Space Shuttle Columbia's Remote Manipulator System (RMS). This marked the third of five scheduled STS-109 space walks and the mission's second extravehicular activity (EVA) for the tandem of Grunsfeld and Linnehan. It was completed at 9:16 a.m. CST (1516 GMT), Mar. 6, 2002. The image was recorded with a digital still camera.

STS081-E-05144 (13 Jan. 1997) --- Making sure everything is in its place is no easy task as witnessed by the serious countenance of astronaut John M. Grunsfeld, mission specialist. Grunsfeld communicates with ground controllers as he checks progress of item transfers in the Spacehab Double Module (DM). This image was recorded with an Electronic Still Camera (ESC) and was later downlinked to flight controllers in Houston, Texas. Grunsfeld and five astronaut crew mates are preparing for a scheduled mid-week docking with Russia's Mir Space Station.

S95-00356 (14 September 1992) --- Several 1992 astronaut candidates wait in line to receive gear for one of several phases of parachute familiarization and survival training at Vance Air Force Base in Oklahoma. Recognizable in the picture are Jerry M. Linenger, Scott E. Parazynski, Koichi Wakata, Andrew S. W. Thomas, Mary Ellen Weber, Joseph R. Tanner, John M. Grunsfeld and Richard M. Linnehan.

JSC2007-E-113495 (17 Dec. 2007) --- Astronaut John M. Grunsfeld, STS-125 mission specialist, attired in a training version of the Extravehicular Mobility Unit (EMU) spacesuit, awaits the start of a training session in the waters of the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center.

JSC2008-E-031807 (2 April 2008) --- Astronaut John M. Grunsfeld, STS-125 mission specialist, participates in an extravehicular activity (EVA) hardware training session in the Space Vehicle Mockup Facility at NASA's Johnson Space Center.

STS081-361-026 (12-22 Jan 1997) --- Astronaut John M. Grunsfeld, mission specialist, floats into the Spacehab Double Module (DM) bearing a freezer unit in support of experimentation, onboard the Space Shuttle Atlantis during the Atlantis - Russia?s Mir Space Station docking mission.

JSC2008-E-035375 (17 April 2008) --- Astronaut John M. Grunsfeld, STS-125 mission specialist, photographed in the rear station of a NASA T-38 trainer jet, prepares for a flight at Ellington Field near NASA's Johnson Space Center.

S103-E-5201 (21 Dec. 1999) --- Astronaut John M. Grunsfeld, uses a pair of binoculars to view the distant Hubble Space Telescope (HST) several hours prior to its capture by the Space Shuttle Discovery. The photo was taken with an electronic still camera (ESC) at 12:45.19 GMT, Dec. 21, 1999.

S96-15402 (26 Sept. 1996) --- In the Johnson Space Center's weightless environment training facility, astronaut John M. Grunsfeld, STS-81 mission specialist, prepares to simulate a parachute drop into water. Five STS-81 crewmates, out of frame, joined him for the bailout training exercises.

JSC2007-E-27769 (6 June 2007) --- Astronauts Michael J. Massimino (left), Andrew J. Feustel (right, partially obscured) and John M. Grunsfeld (foreground), STS-125 mission specialists, participate in a training session with a Hubble Space Telescope mockup in the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center.

JSC2008-E-035374 (17 April 2008) --- Astronaut John M. Grunsfeld, STS-125 mission specialist, photographed in the rear station of a NASA T-38 trainer jet, prepares for a flight at Ellington Field near NASA's Johnson Space Center.

STS081-368-018 (12-22 Jan. 1997) --- Astronaut John M. Grunsfeld, STS-81 mission specialist, mans the pilot's station on the Space Shuttle Atlantis' flight deck during rendezvous operations with Russia's Mir Space Station.

STS103-331-013 (19-27 December 1999) --- Astronauts John M. Grunsfeld (right) and Steven L. Smith share space on the end of the remote manipulator system (RMS) as they change out gyroscopes, contained in rate sensor units (RSU) inside the Hubble Space Telescope (HST).

JSC2008-E-047958 (4 June 2008) --- Astronaut John M. Grunsfeld, 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.

JSC2008-E-008414 (29 Jan. 2008) --- Astronauts Scott D. Altman (center), STS-125 commander; John M. Grunsfeld (left) and Michael J. Massimino, both mission specialists, participate in a training session in the Space Vehicle Mockup Facility at the Johnson Space Center.

JSC2008-E-008458 (29 Jan. 2008) --- Astronaut John M. Grunsfeld, 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.

JSC2008-E-006896 (24 Jan. 2008) --- Astronauts John M. Grunsfeld (left), STS-125 mission specialist; Gregory C. Johnson, pilot; and Michael J. Massimino, mission specialist, participate in a food tasting session in the Flight Projects Division Laboratory at the Johnson Space Center.

JSC2007-E-27768 (6 June 2007) --- Astronauts Andrew J. Feustel (foreground), Michael J. Massimino (right) and John M. Grunsfeld (out of frame), STS-125 mission specialists, participate in a training session with a Hubble Space Telescope mockup in the Neutral Buoyancy Laboratory (NBL) near Johnson Space Center.

JSC2007-E-113616 (18 Dec. 2007) --- Astronauts John M. Grunsfeld (left) and Andrew J. Feustel, both STS-125 mission specialists, participate in a training session at consoles in the simulation control area in the Neutral Buoyancy Laboratory (NBL) at the Sonny Carter Training Facility (SCTF) near Johnson Space Center (JSC).

JSC2008-E-031810 (2 April 2008) --- Astronauts John M. Grunsfeld, STS-125 mission specialist, participates in an extravehicular activity (EVA) hardware training session in the Space Vehicle Mockup Facility at NASA's Johnson Space Center. Flight director Tony Ceccacci looks on.

JSC2002-E-01745 (16 January 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, photographed in the rear station of a T-38 trainer jet, prepares for a flight at Ellington Field near Johnson Space Center (JSC).

S103-E-5204 --- Astronauts Steven L. Smith (right), payload commander, and John M. Grunsfeld use the Canadian-built remote manipulator system (RMS) robot arm to perform servicing tasks on the temporarily-captured Hubble Space Telescope (HST). The photo was taken with an electronic still camera.

JSC2008-E-006307 (22 Jan. 2008) --- Astronaut John M. Grunsfeld, STS-125 mission specialist, participates in an Extravehicular Mobility Unit (EMU) spacesuit fit check in the Space Station Airlock Test Article (SSATA) in the Crew Systems Laboratory at the Johnson Space Center.

STS109-E-5720 (8 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, wearing a portion of the extravehicular mobility unit (EMU) space suit, occupies the commander’s station on the forward flight deck of the Space Shuttle Columbia. The image was recorded with a digital still camera.

S103-E-5206 --- Astronauts Steven L. Smith (right), payload commander, and John M. Grunsfeld use the Canadian-built remote manipulator system (RMS) robot arm to perform servicing tasks on the temporarily-captured Hubble Space Telescope (HST). The photo was taken with an electronic still camera (ESC).

STS081-360-003 (12-22 Jan. 1997) --- Astronaut John M. Grunsfeld performs an inflight maintenance (IFM) task to re-activate power cables connected to experiments in the Spacehab Double Module (DM), onboard the Space Shuttle Atlantis.

S103-E-5202 (21 Dec. 1999) --- Astronaut John M. Grunsfeld, uses a pair of binoculars to view the distant Hubble Space Telescope (HST) several hours prior to its capture by the Space Shuttle Discovery. The photo was taken with an electronic still camera (ESC) at 12:45.30 GMT, Dec. 21, 1999.

JSC2001-E-44846 (December 2001) --- The STS-109 crew members pause from their mission training for a cake cutting ceremony in the Jake Garn Simulation and Training Facility at the Johnson Space Center (JSC). From left to right are astronauts John M. Grunsfeld, Michael J. Massimino, Scott D. Altman, and Duane G. Carey, James H. Newman; along with David Steward of the United Space Alliance (USA). Altman and Carey are mission commander and pilot, respectively. Grunsfeld is payload commander, with the others serving as mission specialists. Astronauts Nancy J. Currie and Richard M. Linnehan are out of frame.

STS109-E-5750 (8 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, floats near the giant Hubble Space Telescope (HST) temporarily hosted in the Space Shuttle Columbia’s cargo bay. Astronaut Richard M. Linnehan (lower right), mission specialist, works in tandem with Grunsfeld during this fifth and final scheduled space walk. Activities for EVA-5 centered around the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) to install a Cryogenic Cooler and its Cooling System Radiator. The space walk was completed at 10:06 a.m. CST (1606 GMT), March 8, 2002. The image was recorded with a digital still camera.

STS109-315-007 (8 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, anchored on the end of the Space Shuttle Columbia’s Remote Manipulator System (RMS) robotic arm, moves toward the giant Hubble Space Telescope (HST) temporarily hosted in the orbiter’s cargo bay. Astronaut Richard M. Linnehan (out of frame) works in tandem with Grunsfeld during this fifth and final session of extravehicular activity (EVA). Activities for the space walk centered around the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) to install a Cryogenic Cooler and its Cooling System Radiator.

JSC2001-E-44845 (December 2001) --- The STS-109 crew members, along with David Steward (center) of the United Space Alliance (USA), pause from their mission training for a cake cutting ceremony in the Jake Garn Simulation and Training Facility at the Johnson Space Center (JSC). From left to right are astronauts Michael J. Massimino, John M. Grunsfeld, Scott D. Altman, James H. Newman, Richard M. Linnehan, Nancy J. Currie, and Duane G. Carey. Altman and Carey, are mission commander and pilot, respectively. Grunsfeld is payload commander, with the others serving as mission specialists.

Posing for the traditional preflight crew portrait, the seven astronauts of the STS-109 mission are (left to right) astronauts Michael J. Massimino, Richard M. Linnehan, Duane G. Carey, Scott D. Altman, Nancy J. Currie, John M. Grunsfeld and James H. Newman. Altman and Carey were commander and pilot, respectively, with the others serving as mission specialists. Grunsfeld was payload commander. Launched aboard the Space Shuttle Columbia on March 1, 2002, the group was the fourth visit to the the Hubble Space Telescope (HST) for performing upgrade and servicing on the giant orbital observatory.

STS109-E-5721 (8 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, attired in the extravehicular mobility unit (EMU) space suit, completed suited is in the Space Shuttle Columbia’s airlock. Grunsfeld and Richard M. Linnehan, mission specialist, were about to participate in STS-109’s fifth space walk. Activities for EVA-5 centered around the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) to install a Cryogenic Cooler and its Cooling System Radiator. The image was recorded with a digital still camera.

STS109-E-5651 (6 March 2002) --- Astronaut John M. Grunsfeld, payload commander, has donned his extravehicular mobility unit (EMU) space suit and appears ready to begin the middle of five scheduled STS-109 space walks to perform work on the Hubble Space Telescope (HST). Astronauts Grunsfeld and Richard M. Linnehan are scheduled for three shared days of extravehicular activity (EVA). The two mission specialists shared an extravehicular activity (EVA) just two days ago, successfully replacing the starboard solar array on the Hubble. This image was recorded with a digital still camera.

STS109-E-5668 (6 March 2002) --- The two space walking teams of STS-109 crew members, who today surpassed the halfway point in their extravehicular activity (EVA) duty, pose for a snapshot on the mid deck of the Space Shuttle Columbia. From the left are astronauts Richard M. Linnehan, James H. Newman, John M. Grunsfeld and Michael J. Massimino. Following the second spacewalk by the Grunsfeld-Linnehan duo earlier today, marking the third overall for the STS-109 mission, each team has one space walk remaining. The image was recorded with a digital still camera.

STS109-E-5602 (5 March 2002) --- Astronaut Richard M. Linnehan, mission specialist, checks the airlock hatch as two crewmates on the other side, equipped with extravehicular mobility units (EMU) space suits, start their extravehicular activity (EVA). On the previous day astronauts Linnehan and John M. Grunsfeld replaced the starboard solar array on the Hubble Space Telescope (HST). This day's space walk went on to see astronauts James H. Newman and Michael J. Massimino replace the port solar array. Grunsfeld's suit, scheduled for two more space walks, is temporarily stowed on the mid deck floor at right. The image was recorded with a digital still camera.

JOHNSON SPACE CENTER, HOUSTON, TEXAS -- (JSC STS109-5-002) -- STS-109 CREW PORTRAIT -- Seven astronauts take a break from training for the STS-109 mission to pose for the traditional pre-flight crew portrait. From the left are astronauts Michael J. Massimino, Richard M. Linnehan, Duane G. Carey, Scott D. Altman, Nancy J. Currie, John M. Grunsfeld and James H. Newman. Altman and Carey are commander and pilot, respectively, with the others serving as mission specialists. Grunsfeld is payload commander. The group will be the fourth to visit the Hubble Space Telescope (HST) for performing upgrade and servicing on the giant orbital observatory

STS109-S-002 (November 2001) --- Seven astronauts take a break from training for the STS-109 mission to pose for the traditional pre-flight crew portrait. From the left are astronauts Michael J. Massimino, Richard M. Linnehan, Duane G. Carey, Scott D. Altman, Nancy J. Currie, John M. Grunsfeld and James H. Newman. Altman and Carey are commander and pilot, respectively, with the others serving as mission specialists. Grunsfeld is payload commander. The group will be the fourth to visit the Hubble Space Telescope (HST) for performing upgrade and servicing on the giant orbital observatory.

STS109-E-5249 (4 March 2002) --- In Columbia's cargo bay, astronaut John M. Grunsfeld (foreground), payload commander, signals to a crewmate inside the crew cabin. He had just raised his helmet visor's sun shield. Astronauts Grunsfeld and Richard M. Linnehan (out of frame), mission specialist, participating in the first of their assigned STS-109 space walks to perform work on the Hubble Space Telescope (HST), went on to replace the giant telescope’s starboard solar array. Their seven-hour space walk ended at 7:38 a.m. (CST) or 13:38 GMT March 4, 2002.

STS109-E-5247 (4 March 2002) --- In Columbia's cargo bay, astronaut John M. Grunsfeld (foreground), payload commander, signals to a crewmate inside the crew cabin. Astronauts Grunsfeld and Richard M. Linnehan (out of frame), mission specialist, participating in the first of their assigned STS-109 space walks to perform work on the Hubble Space Telescope (HST), went on to replace the giant telescope’s starboard solar array. Their seven-hour space walk ended at 7:38 a.m. (CST) or 13:38 GMT March 4, 2002.

STS109-E-5221 (4 March 2002) --- Astronaut John M. Grunsfeld, payload commander, signals readiness for the first the first of his assigned STS-109 space walks to perform work on the Hubble Space Telescope (HST). Astronauts Grunsfeld and Richard M. Linnehan later donned their helmets and the remainder pieces of their extravehicular mobility unit (EMU) space suits and egressed the Space Shuttle Columbia, eventually replacing the giant telescope’s starboard solar array during a space walk that ended at 7:38 a.m. (CST) or 13:38 GMT March 4, 2002.

STS-103 mission specialist John M. Grunsfeld (attached to a workstation on the RMS arm) and payload commander Steven L. Smith (free-floating) perform a changeout of the Rate Sensor Units (RSU) in one of the bays of -V3 plane of the Hubble Space Telescope (HST). This repair was performed during the first of three extravehicular activities (EVAs) of the mission. Grunsfeld is distinguished by having no marks on his EMU and Smith is distinguished by the red strip on the pants of his EMU.

STS-103 mission specialist John M. Grunsfeld (attached to a workstation on the RMS arm) and payload commander Steven L. Smith (free-floating) perform a changeout of the Rate Sensor Units (RSU) in one of the bays of -V3 plane of the Hubble Space Telescope (HST). This repair was performed during the first of three extravehicular activities (EVAs) of the mission. Grunsfeld is distinguished by having no marks on his EMU and Smith is distinguished by the red strip on the pants of his EMU.

S99-06191 (21 June 1999) --- Astronaut John M. Grunsfeld, mission specialist, wearing an underwater-adapted training version of the Shuttle extravehicular mobility unit (EMU), prepares to go below the water in the Neutral Buoyancy Laboratory (NBL). Grunsfeld and other astronauts assigned to STS-103 space walk duty are in training for EVA chores they will handle when they make the third servicing visit to the Earth-orbiting Hubble Space Telescope (HST) since its deployment in April of 1990.

S103-E-5208 --- Astronauts Steven L. Smith (bottom), payload commander, and John M. Grunsfeld, mission specialist, perform servicing tasks on the temporarily-captured Hubble Space Telescope (HST). Grunsfeld is on a foot restraint connected to Discovery's remote manipulator system (RMS) robot arm. Smith, making his second servicing visit to HST, is using handrails on the telescope. The photo was taken with an electronic still camera (ESC).

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.

S99-08359 (26 July 1999) --- Astronaut John M. Grunsfeld, mission specialist, wearing an underwater-adapted training version of the Shuttle extravehicular mobility unit (EMU), signals "all's well" prior to going into the water in the Neutral Buoyancy Laboratory (NBL). Grunsfeld and other astronauts assigned to STS-103 space walk duty are in training for EVA chores they will handle when they make the third servicing visit to the Earth-orbiting Hubble Space Telescope (HST) since its deployment in April 1990.

JSC2008-E-006306 (22 Jan. 2008) --- Astronaut John M. Grunsfeld, STS-125 mission specialist, participates in an Extravehicular Mobility Unit (EMU) spacesuit fit check in the Space Station Airlock Test Article (SSATA) in the Crew Systems Laboratory at the Johnson Space Center. Astronaut Michael T. Good (right), mission specialist, and United Space Alliance (USA) suit technician James Lemmon assisted Grunsfeld.

S99-08659 (24 May 1999) --- Astronaut John M. Grunsfeld, STS-103 mission specialist, has just donned a training version of the shuttle launch and entry garment prior to an emergency bailout training session at the Johnson Space Cetner (JSC). Grunsfeld will join six other astronauts for the autumn visit to the Hubble Space Telescope (HST) to participate in NASA third servicing mission on the orbiting observatory.

JSC2007-E-113485 (17 Dec. 2007) --- Astronaut John M. Grunsfeld, 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. Astronauts Andrew J. Feustel (left) and Michael J. Massimino, both mission specialists, assisted Grunsfeld.

S103-E-5209 --- Astronauts Steven L. Smith (bottom), payload commander, and John M. Grunsfeld, mission specialist, perform servicing tasks on the temporarily-captured Hubble Space Telescope (HST). Grunsfeld is on a foot restraint connected to Discovery's remote manipulator system (RMS) robot arm. Smith, making his second servicing visit to HST, is using handrails on the telescope. The photo was taken with an electronic still camera (ESC).

STS103-E-5243 (22 December 1999) --- Astronaut John M. Grunsfeld, mission specialist, on Discovery's mid deck wearing the thermal undergarment which complements the extravehicular mobility unit (EMU) space suit. Grunsfeld joined astronaut Steven L. Smith for the first scheduled space walk on this the third NASA visit to HST. This photo was taken with an electronic still camera (ESC).

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.

STS067-377-008 (2-18 March 1995) --- Astronaut John M. Grunsfeld, mission specialist, uses a handheld Hasselblad camera to record the Astro-2 payload. Orbiting Earth at 190 nautical miles, Grunsfeld joined four other NASA astronauts and two scientists for almost 17 days conducting research in support of the Astro-2 mission.

STS109-E-5419 (7 March 2002) --- Flight Day 7 of the STS-109 mission finds payload commander John M. Grunsfeld back in the shirt-sleeve environment of the Space Shuttle Columbia. Two of Grunsfeld's crewmates were about to begin the fourth space walk of the mission to perform special tasks on the Hubble Space Telescope (HST). Grunsfeld will participate in the fifth and final scheduled spacewalk in a little more than 24 hours. It will mark his third space walk for the current mission. This image was recorded with a digital still camera.

STS109-E-5449 (4 March 2002) --- Astronaut John M. Grunsfeld, payload commander, peers into the crew cabin of the Space Shuttle Columbia during the first STS-109 extravehicular activity (EVA-1) on March 4, 2002. Grunsfeld's helmet visor, with the sunshield now in place, displays mirrored images of the Earth's hemisphere and the Space Shuttle Columbia's aft cabin. The distorted reflection gives the crew cabin a cyclops-like appearance. Astronauts Grunsfeld and Richard M. Linnehan replaced the starboard solar array on the Hubble Space Telescope (HST) on the first of five scheduled STS-109 space walks. The lower portion of the giant telescope can be seen behind the payload commander. The image was recorded with a digital still camera by a crewmate on shuttle's aft flight deck.

STS109-E-5450 (4 March 2002) --- Astronaut John M. Grunsfeld, payload commander, peers into the crew cabin of the Space Shuttle Columbia during the first STS-109 extravehicular activity (EVA-1) on March 4, 2002. Grunsfeld's helmet visor, with the sunshield now in place, displays mirrored images of the Earth's hemisphere and the Space Shuttle Columbia's aft cabin. The distorted reflection gives the crew cabin a cyclops-like appearance. Astronauts Grunsfeld and Richard M. Linnehan replaced the starboard solar array on the Hubble Space Telescope (HST) on the first of five scheduled STS-109 space walks. The lower portion of the giant telescope can be seen behind the payload commander. The image was recorded with a digital still camera by a crewmate on shuttle's aft flight deck.

STS109-E-5735 (8 March 2002) --- Astronaut John M. Grunsfeld, STS-109 payload commander, works in tandem with astronaut Richard M. Linnehan, mission specialist, as the two devote their attention to the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) on the giant Hubble Space Telescope (HST). Grunsfeld stands on a foot restraint on the end of the Space Shuttle Columbia’s Remote Manipulator System (RMS). This marked the fifth and final scheduled STS-109 space walk and the mission’s third extravehicular activity (EVA) for the tandem of Grunsfeld and Linnehan. It was completed at 10:06 a.m. CST (1606 GMT), March 8, 2002. The image was recorded with a digital still camera.

STS109-E-5650 (6 March 2002) --- All suited up and ready for the middle of five scheduled space walks to perform work on the Hubble Space Telescope (HST) are astronauts John M. Grunsfeld (left), payload commander, and Richard M. Linnehan. The two mission specialists shared an extravehicular activity (EVA) just two days ago, successfully replacing the starboard solar array on the Hubble. This image was recorded with a digital still camera.

STS109-322-025 (1-12 March 2002) --- A close-up view of the power control unit or PCU, which is the heart of the Hubble Space Telescope (HST) power system. Astronauts John M. Grunsfeld and Richard M. Linnehan, STS-109 payload commander and mission specialist, respectively, replaced the PCU on March 6, 2002, during the third space walk of the mission.

Posing in front of the Space Shuttle Columbia is the returning STS-109 crew. From left are astronauts James H. Newman, Michael J. Massimino, Nancy J. Currie, Scott D. Altman, Duane G. Carey, John M. Grunsfeld and Richard M. Linnehan. The crew returned to Earth after a successful 11-day mission servicing and upgrading the Hubble Space Telescope.

STS109-E-5379 (6 March 2002) --- Astronaut Richard M. Linnehan, mission specialist, works on the Hubble Space Telescope (HST) in the cargo bay of the Space Shuttle Columbia during the STS-109 mission's third space walk. The primary purpose of the extravehicular activity (EVA) of astronauts Linnehan and John M. Grunsfeld was to replace the Power Control Unit on the giant telescope. The image was recorded with a digital still camera by one of Linnehan's crew mates inside Columbia's crew cabin.

JSC2002-E-03553 (17 January 2002) --- The STS-109 crewmembers participate in a bench review of equipment and gear in an offsite facility near Johnson Space Center (JSC). From the left (in blue lab coats) are astronauts Michael J. Massimino, mission specialist, John M. Grunsfeld, payload commander, Richard M. Linnehan, mission specialist, Duane G. Carey, pilot, Nancy J. Currie, mission specialist, Scott D. Altman, mission commander, and James H. Newman, mission specialist.

STS109-E-5452 (4 March 2002) --- Astronauts Richard M. Linnehan (partially visible on the end of Columbia's robotic arm), STS-109 mission specialist, and John M. Grunsfeld (center frame), payload commander, work to replace the starboard solar array on the Hubble Space Telescope (HST). Linnehan works while anchored to a foot restraint connected to the shuttle's Remote Manipulator System (RMS), controlled inside the shuttle's crew cabin by astronaut Nancy J. Currie, mission specialist. The image was recorded with a digital still camera.

JSC2001-E-44844 (December 2001) --- The STS-109 crew members pause from their mission training for a cake cutting ceremony in the Jake Garn Simulation and Training Facility at the Johnson Space Center (JSC). Standing is astronaut Scott D. Altman, mission commander. Seated from left to right are astronauts John M. Grunsfeld, payload commander; Michael J. Massimino, mission specialist; Duane G. Carey, pilot; along with Nancy J. Currie, James H. Newman, and Richard M. Linnehan, mission specialists.

JSC2001-E-24460 (8 August 2001) --- John M. Grunsfeld (right), payload commander, assists Richard M. Linnehan, STS-109 mission specialist, in using virtual reality hardware at the Johnson Space Center (JSC) to rehearse some of his duties on the upcoming STS-109 mission, NASA’s fourth servicing visit to the Hubble Space Telescope (HST). They will join five other astronauts for the servicing mission, scheduled for February 2002.

STS109-E-5653 (6 March 2002) --- Astronaut Richard M. Linnehan, mission specialist, has just completed donning his extravehicular mobility unit (EMU) space suit for the second bonafide time during the STS-109 mission. Astronauts Linnehan and John M. Grunsfeld were about to embark on the third of five scheduled STS-109 space walks. The image was recorded with a digital still camera.

STS109-318-005 (1-12 March 2002) --- Astronauts James H. Newman (left foreground) and Michael J. Massimino, both STS-109 mission specialists, wearing the liquid cooling and ventilation garment that complements the Extravehicular Mobility Unit (EMU) space suit, are photographed on the mid deck of the Space Shuttle Columbia. Also pictured are astronauts John M. Grunsfeld (right) and Richard M. Linnehan, payload commander and mission specialist, respectively. The two teams were preparing for one of the five scheduled space walks for the mission.

STS109-E-5244 (4 March 2002) --- Astronauts John M. Grunsfeld (red stripes on suit), payload commander, and Richard M. (Rick) Linnehan, mission specialist, participate in the first of their assigned STS-109 space walks to perform work on the Hubble Space Telescope (HST). The two went on to replace the giant telescope’s starboard solar array. Their seven-hour space walk ended at 7:38 a.m. (CST) or 13:38 GMT March 4, 2002.

JSC2002-E-09328 (13 March 2002) --- The STS-109 crew exit a Gulfstream aircraft during the crew return ceremonies at Ellington Field. From the left (foreground) are astronauts Scott D. Altman, mission commander, Nancy J. Currie, mission specialist, and Duane G. Carey, pilot. From the top of the stairs are astronauts Richard M. Linnehan, James H. Newman, and Michael J. Massimino, all mission specialists. Astronaut John M. Grunsfeld, payload commander, is out of frame.

STS109-E-5333 (4 March 2002) --- Three STS-109 crew members assigned to extravehicular activity (EVA) duty on the Hubble Space Telescope (HST) discuss strategy on the mid deck of the Space Shuttle Columbia. From the left are astronauts Richard M. Linnehan, John M. Grunsfeld and Michael J. Massimino. The image was recorded with a digital still camera.