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STS-125
TheHubble Space TelescopeinAtlantis' payload bay
NamesSpace Transportation System-125
Mission typeHubble servicing
OperatorNASA
COSPAR ID2009-025AEdit this at Wikidata
SATCATno.34933
Mission duration12days, 21hours, 37minutes, 9seconds[1]
Distance travelled8,500,000 kilometres (5,300,000 mi)[NASA 1]
Orbits completed197[1]
Spacecraft properties
SpacecraftSpace ShuttleAtlantis
Crew
Crew size7
Members
Start of mission
Launch dateMay 11, 2009, 18:01:56(2009-05-11UTC18:01:56Z)UTC[NASA 2][2]
Launch siteKennedy,LC-39A
End of mission
Landing dateMay 24, 2009, 15:39:05(2009-05-24UTC15:39:06Z)UTC
Landing siteEdwards,Runway22[1]
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude486 kilometres (302 mi)
Apogee altitude578 kilometres (359 mi)
Inclination28.5°[NASA 3]
Period97 min
Capture ofHubble
RMScaptureMay 13, 2009, 17:14 UTC
Berthing dateMay 13, 2009, 18:12 UTC
Unberthing dateMay 19, 2009, 11:24 UTC
RMS releaseMay 19, 2009, 12:57 UTC

STS-125 mission patch

From left to right:Massimino,Good,Johnson,Altman,McArthur,GrunsfeldandFeustel

STS-125,orHST-SM4(Hubble Space TelescopeServicing Mission 4), was the fifth and finalSpace Shuttlemission to theHubble Space Telescope(HST). The launch of the Space ShuttleAtlantisoccurred on May 11, 2009, at 2:01 pm EDT.[2][3][4]Landing occurred on May 24 at 11:39 am EDT,[5]with the mission lasting a total of just under 13 days.

Space ShuttleAtlantiscarried two new instruments to the Hubble Space Telescope, theCosmic Origins Spectrographand theWide Field Camera 3.The mission also replaced aFine Guidance Sensor,sixgyroscopes,and twobatteryunit modules to allow the telescope to continue to function at least through 2014.[6][7]The crew also installed newthermal blanketinsulating panels to provide improved thermal protection, and a soft-capture mechanism that would aid in the safe de-orbiting of the telescope by a robotic spacecraft at the end of its operational lifespan.[NASA 4][8]The mission also carried anIMAXcamera with which the crew documented the progress of the mission for the 2010 IMAX filmHubble.[NASA 5]

The crew of STS-125 included three astronauts who had previous experience servicing Hubble.[NASA 3][NASA 6] Scott Altmanvisited Hubble in 2002 as commander ofSTS-109,the fourth Hubble servicing mission.[NASA 7]John Grunsfeld,anastronomer,has serviced Hubble twice, performing a total of fivespacewalksonSTS-103in 1999 andSTS-109.[NASA 7]Michael Massiminoserved with both Altman and Grunsfeld on STS-109, and performed two spacewalks to service the telescope.[NASA 7]

NASAmanagers and engineers declared the mission a complete success.[1][9]The completion of all the major objectives, as well as some that were not considered vital, upgraded the Hubble telescope to its most technologically advanced state since its launch nineteen years before and made it more powerful.[7][10]The upgrades helped Hubble to see deeper into the universe and farther into the past, closer to the time of theBig Bang.[11]

STS-125 was the only visit to the Hubble Space Telescope forAtlantis;the telescope had been previously serviced twice byDiscoveryand once each byColumbiaandEndeavour.The mission was the 30th flight of Space ShuttleAtlantisand also the first byAtlantisin over 14 years not to visit a space station, the last one beingSTS-66.[2][12]

Crew

[edit]
Prince Philipof the United Kingdom visitedGoddard Space Flight Centerin May 2007 and met with the crew of STS-125.
Position Astronaut
Commander Scott Altman
Fourth and last spaceflight
Pilot Gregory C. Johnson
Only spaceflight
Mission Specialist 1 Michael T. Good
First spaceflight
Mission Specialist 2
Flight Engineer 		Megan McArthur
First spaceflight
Mission Specialist 3 John M. Grunsfeld
Fifth and last spaceflight
Mission Specialist 4 Mike Massimino
Second and last spaceflight
Mission Specialist 5 Andrew J. Feustel
First spaceflight

Mission history

[edit]

The fifth servicing mission to Hubble, HST-SM4, was originally scheduled to launch in late 2005 or early 2006.[13][14]However, theloss ofColumbiain 2003, in which the orbiter disintegrated on re-entry into the atmosphere, had negative effects on the Hubble program as well as other NASA missions. On January 16, then-NASA AdministratorSean O'Keefecanceled the mission, as well as any future missions to Hubble, citing them as too risky, that all future shuttle missions would dock with International Space Station if an in-flight problem were to develop,[15]as well as safety constraints imposed by theColumbiaAccident Investigation Board.[16][17][18]During the announcement, O'Keefe stated that it was his decision alone, and not a recommendation from any other departments.[16]The decision was widely criticized by the media, the science community, and those in NASA.[14][19]MarylandSenatorBarbara Mikulski,a member of the Senate subcommittee that oversees NASA's budget, publicly accused O'Keefe of making a decision outside the transparency process against the wishes of the science community, and stated she would work to reverse the decision.[14]In response to the criticism, O'Keefe said that he would review his decision to cancel the servicing mission.[20]

In March 2004,RepresentativeMark Udallintroduced a bill to the House of Representatives that requested an independent panel of experts review O'Keefe's decision to cancel the servicing mission.[14]Also in March 2004,Space Telescope Science Institute(STScI) Director Stephen Beckwith released the results of theHubble Ultra-Deep Fieldsurvey to the entire science community, which helped show the public how important Hubble was to science.[14]The data showed the deepest images ever taken by a telescope and revealed approximately 10,000 galaxies, some of which most likely dated back to when the universe was just five hundred million years old.[14]With Beckwith when he released the data to the scientific community was Mikulski, who said of the results, "I think it's just amazing... this is why I will continue to stand up for Hubble."[14]Joining Mikulski as an advocate for servicing Hubble was NASA's Chief Scientist,physicistJohn Grunsfeld, who was present at the meeting when O'Keefe announced the cancellation of the mission.[21]A veteran astronaut of four shuttle missions, including two Hubble servicing missions, Grunsfeld had devoted years to Hubble, and was very disappointed when O'Keefe canceled the mission.[21]He briefly considered retiring from NASA, but realized if he stayed, he could continue to advance physics in other ways.[21]Instead, Grunsfeld dedicated himself to finding alternate ways to service the telescope, possibly by sending a robot into orbit to do the job.[21]When O'Keefe announced his resignation as Administrator in December 2004, five days after aNational Academy of Sciencescommittee opposed O'Keefe's position regarding servicing Hubble,[22][23]the media and science community saw hope for the telescope's servicing mission to be reinstated.[24][25][Zimmerman 1]

O'Keefe's replacement,Michael D. Griffin,took just two months after his appointment to announce that he disagreed with O'Keefe's decision, and would consider sending a shuttle to repair Hubble.[Zimmerman 2]As an engineer, Griffin had previously worked on Hubble's construction, and respected the discoveries the telescope brought to the science community.[Zimmerman 2]He agreed with the National Academy of Sciences that a robotic mission was not feasible, and said that in light of the "Return to Flight" changes made following theColumbiaaccident, a shuttle mission to repair Hubble should be reassessed.[Zimmerman 3]After the successes of the Return to FlightSTS-114andSTS-121missions, and the lessons learned and improvements made following those missions, managers and engineers worked to formulate a plan that would allow the shuttle to service Hubble, while still adhering to the post-Columbiasafety requirements.[Zimmerman 1]

On October 31, 2006, Griffin announced that the Hubble servicing mission was reinstated, scheduled for 2008, and announced the crew that would fly the mission, which included Grunsfeld.[NASA 8][26][27]Senator Mikulski expressed her delight at the news, stating "The Hubble telescope has been the greatest telescope since Galileo invented the first one. It has gone to look at places in the universe that we didn't know existed before."[28]

New Yorker and dedicatedNew York Metsfan, Mike Massimino, brought the home plate from Shea Stadium along on the mission. He was forced to slightly alter the plate to allow it to fit into the locker designated for memorabilia. Massimino presented the plate back to the Mets management upon return and threw out the first pitch there. The plate is now on display atCiti Field.[29]

Mission payload

[edit]
Location Cargo Mass
Bays 1–2 Orbiter Docking System
EMUs3006, 3004, 3015, 3017 		1,800 kilograms (4,000 lb)
~480 kilograms (1,060 lb)
Bay 3P Shuttle Power
Distribution Unit (SPDU) 		~17 kilograms (37 lb)
Bays 4–5 SLIC /COPE with
Wide Field Camera 3 		2,990 kilograms (6,590 lb)
Bays 7–8 ORUC COS/RSU/FGS
Cosmic Origins Spectrograph
Fine Guidance Sensor,Gyros 		3,339 kilograms (7,361 lb)
Bay 10P GABA/MFR ~50 kilograms (110 lb)
Bay 10P GABA/PFR ~50 kilograms (110 lb)
Bay 11 HST-FSS/BAPS/SCM
Berthing and Positioning Sys
Soft Capture Mechanism 		2,177 kilograms (4,799 lb)
Bay 12 MULE
RNS, NOBL blankets 		1,409 kilograms (3,106 lb)
Starboard Sill Orbiter Boom Sensor System ~382 kilograms (842 lb)
Port Sill Canadarm301 410 kilograms (900 lb)
Total: 13,104 kilograms (28,889 lb)
TheCosmic Origins Spectrographin thecleanroom.

The mission added two new instruments to Hubble. The first instrument, theCosmic Origins Spectrograph,became the most sensitive ultraviolet spectrograph ever installed on the telescope.[NASA 5][NASA 6]Its far-UV channel is 30 times more sensitive than previous instruments and the near-UV is twice as sensitive. The second instrument, theWide Field Camera 3,is apanchromaticwide-field camera that can record a wide range of wavelengths, includinginfrared,visible,andultraviolet light.[NASA 6]Atlantisalso carried the Soft-Capture Mechanism, which was installed onto the telescope.[NASA 9] This will enable a spacecraft to be sent to the telescope to assist in its safede-orbitat the end of its life. It is a circular mechanism containing structures and targets to aid docking.[NASA 6]

The Wide Field Camera 3 being prepared for launch.

The infrastructure of the telescope was upgraded by replacing a "Fine Guidance Sensor" that controls the telescope's directional system, installing a set of six newgyroscopes,replacing batteries, and installing a new outer blanket layer to provide improved insulation.[NASA 6]

The payload bay elements were the Super Lightweight Interchangeable Carrier (SLIC) which held the Wide Field Camera 3, new batteries, and a radiator;[NASA 10]the ORU Carrier which stored the Cosmic Origins Spectrograph and FGS-3R instruments; the Flight Support Structure (FSS) which held onto the Hubble during repairs;[NASA 11]the Multi-Use Lightweight Equipment Carrier (MULE) which held support equipment[NASA 12]and the Relative Navigation Sensor (RNS) Experiment.

Along with the collectible items that are flown on shuttle missions, such as mission patches, flags, and other personal items for the crew, were an officialHarlem Globetrottersbasketball and a basketball thatEdwin Hubbleused in 1909 when he played for theUniversity of Chicago.[30][31]After being returned to Earth, the Harlem Globetrotters basketball would be placed in theNaismithMemorialBasketball Hall of Fame,and Hubble's ball would be returned to the University of Chicago.[30]Michael Massimino flew a 1964 reprint ofGalileo'sSidereus Nunciusfrom the library of his alma mater,MIT.[32]

IMAX movie

[edit]

At the end of September 2007,Warner Bros.Pictures andIMAXCorporation announced that in cooperation with NASA, an IMAX 3D camera would travel to the Hubble telescope in the payload bay ofAtlantisfor production of a new film that will chronicle the story of the Hubble telescope.[NASA 5]An IMAX camera was also stationed at theLC-39 Press Sitefor the launch. IMAX has made a number of movies centered around space, includingDestiny in Space,The Dream Is Alive,Mission to Mir,Blue Planet,Magnificent Desolation: Walking on the Moon 3D,andSpace Station 3D,made in 2001 on the first trip of IMAX to the ISS.[NASA 5][33]The movie was released in March 2010, with the nameIMAX: Hubble 3D.

Media

[edit]

AstronautMichael J. MassiminousedTwitterto document the training and preparations for the mission. He mentioned that he would like to try sending Twitter updates from space during his off-duty time.[34] Massimino's first update read, "From orbit: Launch was awesome!! I am feeling great, working hard, & enjoying the magnificent views, the adventure of a lifetime has begun!".[35]

Crew seat assignments

[edit]
Seat[36] Launch Landing
Seats 1–4 are on the flight deck.
Seats 5–7 are on the mid-deck.
1 Altman
2 Johnson
3 Good Massimino
4 McArthur
5 Grunsfeld
6 Massimino Good
7 Feustel

Mission background

[edit]

The mission marked:[12]

Shuttle processing

[edit]
AtlantisandEndeavourwere launch pad neighbors for the last time, in preparation for STS-125.
AtlantisatLC-39Aprior to launch, after the RSS was retracted.

STS-125 was first assigned toDiscoverywith a launch date no earlier than May 2008.[37][38]This originally moved the mission ahead ofSTS-119,ISS Assembly flight 15.[37]Delays to several shuttle missions resulted in a change in mission ordering, and the orbiter was changed toAtlantison January 8, 2007.[39][40]The crew ofAtlantiswent to theKennedy Space Centerfor the Crew Equipment Interface Test in early July 2008. This allowed the STS-125 crew to get familiar with the orbiter and the hardware they would be using during the flight.[NASA 14]

Launch delays

[edit]

On August 22, 2008, after a delay followingTropical Storm Fay,Atlantiswas rolled from theOrbiter Processing Facilityto theVehicle Assembly Building,where it was mated to theexternal fuel tankandsolid rocket boosterstack.[41]Problems were encountered during the mating process, and poor weather due toHurricane Hannacaused a delay in the rollout ofAtlantisto the launch pad, which is normally done seven days after rollover.[42][43]

STS-125 was further pushed back to October 2008 due to manufacturing delays onexternal tanksfor future space shuttle missions.[44]Lockheed Martinexperienced delays during the production changes to make new external tanks with all the enhancements recommended by theColumbia Accident Investigation Board,making it impossible for them to produce two tanks for the STS-125 mission–one forAtlantis,and one forEndeavourfor anemergency rescue mission,if necessary–in time for the original August launch date.[44]

The first rollout to Launch Pad 39A occurred on September 4, 2008.[45]On September 27, the Science Instrument Command and Data Handling (SIC&DH) Unit on the Hubble Space Telescope failed.[6]Because of its importance to the telescope, NASA postponed the launch of STS-125 on September 29 until 2009 so the failed unit could be replaced as well.[6]Atlantiswas rolled back to theVehicle Assembly Buildingon October 20.[46]

On October 30, 2008, NASA announced thatAtlantiswould be removed from its solid rocket boosters and external tank stack and sent back to the Orbiter Processing Facility to await a targeted launch time at 1:11 pm EDT on May 12, 2009.[NASA 15][47]The stack was turned over to be used on theSTS-119mission instead. On March 23,Atlantiswas mated to its new stack in the Vehicle Assembly Building, and rolled out to Launch Pad 39A on March 31.[48]On April 24, 2009, NASA managers issued a request to move the STS-125 launch up one day to May 11 at 2:01 pm EDT.[49]The change was made official at the flight readiness review on April 30.[49] The reason cited for the change was to add one more day to the launch window, from two to three days.[49]

Mission timeline

[edit]

May 11 (Flight day 1, launch)

[edit]
Space ShuttleAtlantislifts off on STS-125 fromKennedy Space Center.

Following a smooth countdown,Atlantislaunched on time at 2:01 pm EDT.[2][3] Almost immediately after launch and during the ascent, flight systems reported problems with a hydrogen tank transducer and a circuit breaker; the crew was immediately advised to disregard the resultant alarms and continue to orbit.[50] During the post-launch news conference, NASA managers said the initial early review of the launch video showed no obvious debris events, but a thorough analysis would be performed to ensure the orbiter sustained no significant damage during ascent.[51] After working through their post launch checklists, the crew opened the payload bay doors, deployed theKu bandantenna, and moved into the robotic activities portion of the day, which included a survey of the payload bay and crew cabin survey with the orbiter'srobotic arm.[NASA 7][51]

During the post-launch inspection of Launch Pad 39A, a twenty-five foot area on the north side of the flame deflector was found to have damage where some of the heat resistant coating came off.[52] Following the launch ofSTS-124,severe damage was seen at the pad where bricks were blasted from the walls, but NASA officials stated the damage from the STS-125 launch was not nearly as severe and should not impact the launch ofSTS-127in June.[52]

May 12 (Flight day 2)

[edit]

Following the morning wake up call, the crew began work on the day's tasks, which were centered on inspection of the orbiter's heat shield. Using the shuttle robotic arm and theOrbiter Boom Sensor System(OBSS), the crew went through a detailed inspection of the orbiter'sthermal protection system(TPS) tile andReinforced carbon-carbon(RCC) surfaces. During the inspection, engineers on the ground noticed a small area of tile on the forward area of the shuttle's right wing that appeared to have suffered some damage during ascent.[NASA 16][53] Mission managers called up to the crew to alert them of the find, advising Altman ( "Scooter" ) that one of the orbiter's wing leading edge sensors recorded a debris event during ascent, around 104 – 106 seconds following liftoff, which may have been the cause of the damage seen in that area.[53] CAPCOMDan Burbankadvised the crew that the damage did not initially appear to be serious, but assured the crew that the image analysis team would be reviewing the imagery further, and engineers on the ground would be analyzing it to determine if a focused inspection would be required.[53]

As part of the Flight Day 2 Execute Package, ground engineers also provided further information on the circuit breaker failure seen at launch.[NASA 17] The breaker (Channel 1 Aerosurfaces, ASA 1) is part of the shuttle's Flight Control Systems (FCS), a subsystem of theguidance, navigation, and control(GNC) systems. The failure would have no impact to the mission, due to redundant systems.[NASA 17]

In addition to the survey of the orbiter's heat shield, the crew gathered and inspected the EVA tools and spacesuits that would be used for the mission's spacewalks and prepared the Flight Support System (FSS) for berthing with Hubble on flight day three.[NASA 18]

May 13 (Flight day 3)

[edit]
John Grunsfeld uses aNikon D2Xwith telephoto lens at an overhead window on the aft flight deck during flight day three activities.

Following the crew's post-sleep activities, they went to work performing the rendezvous operations that included burning the orbiter's engines to refine the approach to the Hubble telescope.[NASA 19][54]Following some delays due to communications issues, Altman and Johnson ( "Ray-J" ) guided the orbiter within fifty feet of the telescope.[54]McArthur successfully grappled Hubble at 17:14 UTC, and at 18:12 the telescope was safely berthed in the payload bay ofAtlantis.[NASA 19][54]Later in the day, Grunsfeld and Feustel (Drew), along with Good ( "Bueno" ) and Massimino ( "Mass" ) worked on preparing for the next day's spacewalk, gathering tools and checking out the suits and equipment that would be used during the EVA.[NASA 19]

At the Mission Management Team (MMT) briefing, MMT ChairmanLeRoy Cainreported that the damage assessment team had cleared all of the orbiter's TPS tiles and blankets, and were expected to clear the RCC portion of the orbiter by flight day four.[NASA 19]He stated that no focused inspection would be required.[55]Cain also noted that a debris event was recorded on the orbiter's wing leading edge sensors, but it was far below the force that would indicate a problem, and would not impact the mission.[55]The late inspection that is routinely performed prior to re-entry would give any additional information, but Cain stated "We're not concerned that it's done any kind of damage that would be any concern to us, certainly not critical damage."[55]

During the Mission Status briefing, Lead Flight Director Tony Ceccacci noted that during the camera survey of the equipment in the payload bay, the team noticed some fine particulate matter around the box containing the Wide Field Camera 3 and asked the crew to take additional images using a higher resolution camera for the ground teams to assess.[55]Cain later confirmed that the dust was not present prior to launch, and was most likely particulate shaken loose from the thick insulation blankets inside the payload bay during launch.[55]The team advised the crew to avoid the particulate as much as possible during the spacewalks, and use caution when working around the container to avoid the debris, but it was not a significant concern.[55]

May 14 (Flight day 4)

[edit]
Mission Specialist John Grunsfeld, performing his sixth spacewalk, is reflected in the Hubble telescope's coating as he works during the mission's first EVA.

Following the crew's wake up, they set to work preparing for the mission's first spacewalk. Grunsfeld and Feustel suited up with the assistance of their EVA counterparts, Massimino and Good, and the spacewalk officially began when the two switched their suits to battery power at 12:52 UTC.[56]At the start of the spacewalk, Feustel provided managers on the ground with a visual inspection report on the particulate matter seen earlier around the WFC3 box, reporting to the ground team that "I don't really see any of those particles...It's almost imperceivable. I can see some few particles on the front of the W-SIPE, little, whitish, grey looking, real small. It's low density, too."[57]After getting their tools and equipment for the EVA set up, Grunsfeld and Feustel removed the oldWide Field and Planetary Camera 2,which was installed in 1993 during the telescope's first servicing mission, and replaced it with the newWide Field Camera 3(WFC3).[56][NASA 4]Feustel initially had trouble removing the bolts from the old camera, which after over fifteen years in space required moretorqueto remove than expected. After multiple attempts, managers on the ground decided to have Grunsfeld get a contingency torque limiter from the airlock, which would allow Feustel to apply more force without exceeding a specific point, but the bolt would still not release.[56]The concern was that the bolt would shear, and the camera would be unable to be removed should that happen.[56]Finally, managers approved Feustel to remove the limiter, and apply as much force as he safely thought it would take to release the bolt, which was successful.[56]

The new camera has allowed Hubble to take large-scale, extremely clear and detailed photos over a wider range of colors than the old camera did.[NASA 4]After the installation, controllers at the Space Telescope Operations Control Center atGoddard Space Flight Centersent commands to the camera to perform an aliveness test, which passed, indicating the camera was installed correctly.[8][57]

The next task was to remove and replace the telescope's Science Instrument Command and Data Handling Unit, or SIC&DH, a computer that sends commands to Hubble's science instruments, and formats science data for transmission to the ground.[NASA 4]This was the item that failed in September 2008, delaying STS-125 while engineers prepared a replacement part for the mission, and the crew trained for the new task.[NASA 4]While the failure of the SIC&DH did not disable the telescope, replacing the unit restores the redundancies.[NASA 4][8]The final major task was to install the Soft-Capture Mechanism (SCM), which includes the 72-inch-wide (1,800 mm)Low Impact Docking System(LIDS) that will allow spacecraft in the future to dock with the telescope, and to safely de-orbit the telescope at the end of its life.[NASA 4][8][NASA 9]Feustel also installed two of four Latch Over Center Kits, or LOCKs, that make opening and closing Hubble's large access doors easier for the remaining spacewalks.[NASA 4]The spacewalk officially ended at 20:12 UTC, for a time of seven hours and twenty minutes. It was the nineteenth spacewalk devoted to servicing the telescope, and brought the total time in servicing Hubble to one hundred thirty-six hours, thirty minutes.[56]Due to the length of the spacewalk, and the delay in beginning, the crew was over an hour behind their scheduled timeline for the day, but worked through the post-EVA activities and evening activities without problems, and got to sleep only slightly behind their scheduled time. During the mission status briefing, David Leckrone, Hubble Project Senior Scientist, noted he was very relieved that the camera was replaced successfully, and noted that the problems with the bolt caused some concern, "I don't normally reveal my age and I'm not going to here, but I can tell you I'm five years older now than I was when I came to work this morning, we can sleep pretty well tonight, knowing that's been accomplished."[56]

May 15 (Flight day 5)

[edit]
Mission Specialists Michael Good (right) and Michael Massimino (lower left) work in the payload bay ofAtlantisduring the mission's second spacewalk.
Tomas Gonzalez-Torres, STS-125 Lead Spacewalk Officer, monitors the progress of the mission.

Following their wake up, theAtlantiscrew set right to work preparing for the second spacewalk of the mission, with Massimino and Good suiting up with assistance from Grunsfeld and Feustel. As they were preparing for the EVA, the team on the ground informed the crew that the WFC3 had passed all the overnight functional tests, indicating it was in good working order.[58]

While the spacewalk preparations were underway, Altman and McArthur completed a robotic survey of a small row of heat shield tiles that had not been sufficiently imaged during the day two inspection. Following the analysis of the survey, the managers cleared all of the TPS systems until the pre-landing inspection.[NASA 20]

The mission's second spacewalk officially began at 12:49 UTC, and the pair set to work removing and replacing the telescope's three gyroscope rate sensing units (RSUs). Each unit contains two gyroscopes that allow the telescope to point itself.[NASA 20]The first unit, RSU 2, was replaced without problems, but when they attempted to replace the second unit, RSU 3, the unit would not align onto the guide pins, and they could not seat it into the equipment bay.[59]Managers decided to put the unit originally intended for the RSU 1 bay into the RSU 3 bay, and it was installed without problems.[59]The pair then attempted to install the second unit into the third and final bay, but the unit again would not seat properly, and they were unable to install it.[59][60]Instead, it was decided that an additional unit carried as a spare would be placed into the final bay.[59]The spare unit was one that was removed during theSTS-103mission, and had been refurbished on the ground.[59][61]The installation of all three gyro units was a critical objective of the servicing mission, as three had failed, one was offline due to electrical issues, and the other two had also been experiencing issues with performance.[61]Ground controllers at Goddard Space Flight Center confirmed that all six gyroscopes and the new battery passed preliminary tests.[NASA 20]

The problems with seating the second RSU set the spacewalkers back in the timeline by approximately two hours, but after Altman asked Massimino and Good how they felt, they replied they were doing well and felt fine to continue.[62]Flight controllers on the ground evaluated the consumables for the twospacesuits,and decided that if Massimino recharged his suit's oxygen in the airlock, the pair could safely continue with the battery installation.[62]After moving to the battery unit site, Good and Massimino removed one of the original battery modules from Bay 2 of the telescope, and replaced it with a new unit.[NASA 20]The batteries provide power to the telescope when it passes into the Earth's shadow and its solar arrays are not exposed to the sun.[NASA 20]The spacewalk officially ended at 20:45 UTC, for a time of seven hours, fifty-six minutes.[63]It was the twentieth spacewalk to service Hubble, bringing the total time in EVA servicing the telescope to one hundred forty-four hours and twenty-six minutes.[63]

During the mission status briefing, Tomas Gonzalez-Torres, the Lead EVA Officer, and Hubble Program Manager Preston Burch both explained that the spare RSU would not impact the life of the telescope, as it had been fully refurbished on the ground with two of the three improvements incorporated in newer models.[61]"I would say the difference in the projected longevity of the observatory in the out years is very small. We don't see this is a significant detriment at all to the observatory. This was a tremendous accomplishment for us." Burch noted.[61]Lead Flight Director Tony Ceccacci noted that due to the length of the spacewalk, and the resulting slip in the timeline, the crew's sleep shift would have to be moved an hour later, to allow them to get the proper amount of rest, and the rest of the docked timeline would also be shifted forward an hour.[NASA 20]

May 16 (Flight day 6)

[edit]
Grunsfeld and Feustel pose for a picture in the airlock ofAtlantisprior to the mission's third spacewalk.
Feustel moves the COSTAR instrument from Hubble to the payload bay ofAtlantis.

After awakening, the crew set to work preparing for the mission's third spacewalk, one that was considered the most challenging and uncertain, yet had some of the highest priority items scheduled.[64][65]The tasks were to remove the obsoleteCorrective Optics Space Telescope Axial Replacement(COSTAR), originally installed duringSTS-61to correct the spherical aberration of Hubble's mirror, and install theCosmic Origins Spectrograph(COS), and to repair theAdvanced Camera for Surveys(ACS).[64][66][67]The ACS failed in June 2006 due to an electrical issue, and after being restored partially, failed again in 2007 due to an electrical short.[64]The ACS was not designed to be serviced or repaired in space, so the task was considered one of the most challenging of the mission.[64]After running into various snags in the first two spacewalks, managers on the ground were prepared to see unexpected issues arise during the complicated repair work.[68]The spacewalk began at 13:35 UTC, and Grunsfeld and Feustel had no problems. The pair worked through their timeline so efficiently that they were over an hour ahead at one point.[68]After removing COSTAR and stowing it in the orbiter's payload bay, they installed COS, and then moved on to the ACS repair. Using specially designed tools, they removed an access panel, replaced the camera's four circuit boards, and installed a new power supply.[67][68]

The spacewalk was completed in six hours and thirty-six minutes, and the ACS passed the initial aliveness tests.[68]It was the twenty-first Hubble servicing spacewalk, and Grunsfeld's seventh EVA, moving him up to fourth in therecord bookof spacewalking time.[NASA 21]During the previous day's mission status briefing, Dave Leckrone, Hubble Space Telescope Senior Project Scientist, made a prediction, joking that since the first two spacewalks, which were considered to be straightforward, had run into issues, the most difficult EVA – to repair the ACS, would be the smoothest one of the mission. "I have a prediction, We've always said EVA 3 was going to be the most difficult and the most challenging, and I predict it's going to go more smoothly than any other EVA on this mission. I just think that's some version of Murphy's Law that's going to lead us in that direction."[68]

After the initial aliveness testing, the ACS was put through its functional tests. Managers and engineers had noted that the repairs were designed for only one of the three photo channels, the wide-field channel, and that the issues with the high-resolution channel may not be resolved by the designed fix.[69]During the functional testing, the wide-field channel passed, but issues were seen with the high-resolution channel, indicating that the power issue may be farther upstream in the electronic circuits than the spacewalk repair addressed.[69][70]Additional testing would be performed, but Hubble Program Manager Preston Burch noted that the fix was designed to "back power" the high-resolution channel through the paths connected to the wide-field channel, and while feasible, it was a possibility that the short circuit damage was in an area not corrected with the planned repair.[69]Even if the high-resolution channel is unable to be restored, it was considered to be less important, since the bulk of the ACS science output is undertaken by the wide-field channel.[70][71]The third channel, thesolar-blindchannel, passed overnight functional testing without issues.[70][71]

May 17 (Flight day 7)

[edit]
Mike Good working in an open panel of Hubble during the fourth spacewalk of the mission.
Good and Massimino at work in the interior of Hubble, while repairing the Space Telescope Imaging Spectrograph.
Mission Specialist Michael Massimino peers into the orbiter's aft flight deck window during the fourth spacewalk of the mission.

Beginning the mission's fourth spacewalk at 13:45 UTC, Massimino and Good went to work repairing theSpace Telescope Imaging Spectrograph(STIS). The spectrograph failed in 2004 due to a blown power supply.[71]As with the ACS, the STIS was not designed with the intention of servicing it while in space, and one of the major challenges was to remove a cover plate held tight with over 100 screws using a specially designed tool called a fastener-capture plate, designed to trap the screws and washers and prevent them from floating into space when removed.[71]While preparing the fastener-capture plate, Massimino encountered issues with a handrail that had to be removed to accommodate the fastener-capture plate.[72][NASA 22][73]The handrail had a stripped bolt on the bottom, preventing it from being released.[NASA 22][73]After trying multiple options without success, managers on the ground advised Massimino to use brute force to remove the handrail, so he could proceed with the removal of the cover plate.[NASA 22][74]The procedure was tested at Goddard Space Flight Center prior to approving it, showing that the stripped bolt could be broken off safely using force.[74]Working inside the orbiter, Feustel walked Massimino through the procedure slowly, advising him to tape the handrail withKaptontape to prevent any parts from breaking off or flying loose, to be aware of the reaction the force would have, as well as to watch for sharp edges on the handrail after removal.[74]

Once the handrail was removed, Massimino went to work attaching the capture plate, but ran into additional problems when the battery in one of his power tools failed.[75]Massimino was instructed to return to the orbiter's airlock to retrieve a spare tool and to recharge his suit's oxygen reserves, to allow for completion of the STIS repair.[75]The rest of the STIS repair work was completed without any problems, but the spacewalkers were nearly two hours behind the scheduled timeline, so managers on the ground decided to postpone the task of installing a New Outer Blanket Layers (NOBLs) onto the telescope's outer shell.[NASA 22]The spacewalk, originally scheduled to last six hours and thirty minutes, ended at 21:47 UTC, for a time of eight hours and two minutes.[NASA 22]At the time, it became the sixth longest spacewalk in history.[NASA 22]It was the twenty-second spacewalk devoted to servicing the Hubble telescope, and Massimino's fourth spacewalk, bringing his total EVA time to thirty hours, forty-four minutes.

During the mission status briefing,Jennifer Wiseman,Chief of Exoplanet and Stellar Astrophysics for Goddard Space Flight Center, noted that the repair of STIS was a major victory for both the mission and the science community, as that part of the telescope performed unique functions, helping scientists understand the materials planets are composed of, and looking at things like the motion of stars aroundblack holes.[65][NASA 22][76]

After initial aliveness testing that showed no issues, STIS was taken into functional testing, and issues were seen when the telescope put itself intosafe modedue to a low thermal limit sensor.[72][NASA 22][75]Ground controllers at Goddard would restart the testing once the thermal limit sensor was back in normal sensor range, but it is believed the component is in good shape.[NASA 22]

May 18 (Flight day 8)

[edit]

As Arthur C. Clarke says, the only way of finding the limits on the possible, is by going beyond them into the impossible. And on this mission, we tried some things that many people said were impossible – fi xing STIS, repairing ACS, achieving all the content that we have in this mission. But we've achieved that and we wish Hubble the very best. It's really a sign of the great country that we live in that we're able to do things like this on a marvelous spaceship like the space shuttleAtlantis.And I'm convinced that if we can solve problems like repairing Hubble, getting to space, doing the servicing we do traveling 17,500 miles an hour around the Earth, that we can achieve other great things, like solving our energy problems and our climate problems, all things that are in the middle of NASA's prime and core values.[77]

— John L. Grunsfeld

Completing the fifth of the five planned spacewalks, Grunsfeld and Feustel successfully installed the second battery, removed and replaced theFine Guidance Sensornumber three, and worked so efficiently that they were over an hour ahead of the timeline, giving them time to remove degraded insulation panels from three bays of the telescope, and install three New Outer Blanket Layers (NOBLs).[77]Beginning the spacewalk at 12:20 UTC, the pair first worked on removing an aging battery module, and replaced it with a new pack, which combined with the battery replacement performed during the second spacewalk, gave the telescope all new nickel-hydrogen batteries.[77]They then moved on to the removal and replacement of the Fine Guidance Sensor unit number three, improving Hubble's focus and stability when imaging.[66]NASA engineers liken the new FGS to being able to keep a laser beam focused on a U.S. dime coin that is 320 km (199 mi) away.[78]Both the new batteries, and the FGS passed both aliveness and functional testing.[NASA 23]The mission's final EVA concluded at 19:22 UTC, after seven hours and two minutes.[NASA 24]The total time spent during the mission in extra-vehicular activity was thirty-six hours, fifty-six minutes.[NASA 24]The twenty-third and final spacewalk to service Hubble brought the total time spent in EVA working on the telescope to one hundred and sixty-six hours, six minutes.[NASA 24]Lead Flight Director Tony Ceccacci noted that the final EVA was also the last planned spacewalk from a shuttle airlock.[79]In what was likely his last EVA, Grunsfeld's has accumulated fifty-eight hours and thirty minutes spacewalking, just two minutes less thanJerry L. Ross,who is third on the list of spacewalking time.[21][80][81]

The completion of all the major objectives, as well as some that were not considered vital, upgraded the telescope to its most technologically advanced state since its launch nineteen years ago, and made it more powerful than ever.[7][10][27]The upgrades will also help Hubble to see deeper into the universe, and farther into the past, closer to the time of theBig Bang.[11]Hubble's importance to science is not just seen in the dramatic images it provides, but also in the volume of work it has generated – an average of fourteen scientific articles are published each week based on data gathered from the telescope.[11]Officially, the upgrades should extend Hubble's life through 2014, but Hubble Space Telescope Senior Scientist David Leckrone noted prior to the mission that if all of the mission's objectives were successful, the telescope could easily last longer than that.[7]The next large telescope that was launched is theJames Webb Space Telescopeon December 25, 2021, which is infrared-only, so to have Hubble, which has ultraviolet, visible, and near-infrared capabilities, still operational after 2018 would be of great benefit to the scientific community.[7][27][82]

May 19 (Flight day 9)

[edit]
The Hubble Space Telescope being lifted out of the payload bay ofAtlantisbefore being released back into space.
A closeup of the Hubble Space Telescope shortly after its release back into space on May 19, 2009.

After awakening at 8:31 UTC, the crew set to work preparing to release Hubble from the payload bay ofAtlantis.Using the shuttle's robotic arm, McArthur grappled Hubble at 10:45 UTC, and lifted it out of the orbiter's payload bay to prepare for the release.[NASA 25][83]Good and Massimino were standing by ready to perform a spacewalk in the event that something went wrong during the telescope's deployment.[83]After working through the checklist to prepare the telescope for release, managers on the ground gave the go to Altman to release Hubble, and at 12:57 UTC, McArthur successfully released the telescope as the vehicles flew over Africa.[84]Performing a small separation burn, Johnson backed the orbiter away from the telescope, and Altman called down to managers on the ground confirming the deployment of Hubble.[84]Commending the crew, Altman said "And Houston, Hubble has been released, it's safely back on its journey of exploration as we begin steps to conclude ours. Not everything went as we planned, but we planned a way to work around everything and with the whole team pulling together... we've been able to do some incredible things. And now Hubble can continue on its own, exploring the cosmos, and bringing it home to us as we head for home in a few days. Thank you."[84]Hubble's new equipment and upgraded systems would be tested for several months prior to resuming operation, but if all tests are successful, operation of the telescope would resume in early September.[84]

Following the separation burn, the crew set to work performing the standard late inspection of the thermal protection system of the orbiter. Using the robotic arm, McArthur, Altman, and Johnson worked through the procedures to inspect the wing leading-edge panels, reinforced carbon-carbon nose cap, and heat shield tiles.[84]After evaluating the weather reports, managers on the ground slightly refined the schedule for landing, opting to bring the shuttle home one orbit early to try to avoid the possibility of showers that would prevent a landing on Friday.[84]The new landing opportunity would bring the crew home at 10:01 am EDT.[84]

May 20 (Flight day 10)

[edit]
Hubble floats free fromAtlantis.

After a busy week servicing Hubble, the crew ofAtlantishad the majority of the day off, giving them time to rest and prepare for landing.[NASA 26]They took their traditional on-orbit crew portrait, and spoke with reporters from around the world in a news conference. The crew also had the opportunity to speak with theExpedition 19crew on board the International Space Station, in a conference call routed through satellites.[NASA 26]The station crew congratulated them on a very successful mission, and the crew ofAtlantisexpressed their gratitude to the station crew for all the work they do during their long duration stays on the station.[85]

The Spaceflight Meteorology Group atJohnson Space Centerwas predicting less than favorable weather for Friday's landing, so managers asked the crew to power down some non-critical systems to help conserve power, in the event that the orbiter is not able to land until Saturday.[85]

The STS-125 crew poses for the traditional in-flight portrait on the middeck ofAtlantis.

After evaluating the imagery sent down from the late inspection, the ground team officially cleared the orbiter's thermal protection system for re-entry.[NASA 26]Initially, NASA had planned on releasingEndeavourfrom its stand-by status following the late inspection, but managers on the ground decided to wait untilAtlantishad performed the de-orbit burn before standing down the STS-400 rescue mission officially.[85]

Before going to sleep, the crew took a phone call fromPresidentBarack Obama,who congratulated them on their successful mission, joked with them, asking if they could see his house in Chicago, and expressed his pride in the crew.[86][87]Obama told the crew, "Like a lot of Americans, I've been watching with amazement the gorgeous images you've been sending back, and the incredible repair mission you've been making in space," he said. "I think you're providing a wonderful example of the kind of dedication and commitment to exploration that represents America and the space program generally. These are traits that have always made this country strong, and all of you personify them."[87]

May 21 (Flight day 11)

[edit]
Pilot Gregory Johnson works through a landing simulation using the orbiter's Portable In-Flight Landing Operations Trainer (PILOT) program on flight day eleven.
Long range tracking image for Edwards AFB landing
Mid range tracking

The crew spent the day in preparations for Friday's landing. After working through their post-sleep activities, Altman, Johnson and McArthur performed a check-out of the flight control surfaces, performed a reaction control system hot-fire, and went through communications checks with managers on the ground.[NASA 27]The rest of the crew worked to stow away items that were used during the mission. The crew held a deorbit preparations briefing with the ground teams, and Altman and Johnson worked with the simulator on board to run through a series of landing simulations.[NASA 27]

In the afternoon, the crew became the first shuttle crew to ever testify live from orbit in aUnited States Senatehearing.[NASA 28]Barbara Mikulski,Chairman of the Senate Appropriations Committee, Subcommittee on Commerce, Justice, Science and Related Agencies, and former astronaut SenatorBill Nelsonof Florida, spoke with the crew about the importance of spaceflight and the repair of Hubble.[NASA 28]The first person to give testimony from space wasJohn L. Phillips,who testified before the House Science Committee, Subcommittee on Space and Aeronautics in June 2005 while a member ofExpedition 11on board the International Space Station.[NASA 28]The crew ofAtlantislater spoke with reporters from the major networksCNN,ABC,NBC,CBS,andFOXbefore going to sleep.[NASA 28]

While the weather in Florida continued to look grim for a landing Friday, managers on the ground advised the crew that they would proceed with deorbit preparations as planned, and see if the weather cleared up in the morning.[88]NASA managers stated that for Friday, they would focus on a KSC landing for Friday, not activating any of the backup sites, but if the weather was not favorable for a Friday landing,Edwards Air Force Basecould be activated on Saturday.[88]Atlantishas enough consumables to stay in orbit until Monday.[88]

Also late on Thursday, managers officially releasedEndeavourfrom its stand-by state, asAtlantiswas cleared of any damage to its heat shield and was in good shape to return to Earth.[88]

May 22 (Flight day 12)

[edit]
Close-in landing tracking

As the crew worked through the procedures and checklists for entry on Friday, the managers on the ground closely examined the weather patterns around Florida, which were less than favorable.[NASA 29]The crew was advised that there were low clouds and thunderstorms, both conditions that violated landing criteria, so managers waived the first opportunity.[NASA 29][89]A second opportunity was also not taken, as the weather had not improved.[89]Entry Flight Director Norm Knight called up Edwards Air Force Base shortly after the decision to delay to Saturday was made, which would give the crew a total of six Saturday landing opportunities, three at each location.[NASA 29][89][90]

May 23 (Flight day 13)

[edit]
Space ShuttleAtlantislands atEdwards Air Force Baseafter a successful STS-125 mission

The crew ofAtlantishad six possible landing opportunities on Saturday.[91][NASA 30]Managers evaluated the best three opportunities of the day to try to bring the orbiter home.[91]Saturday's first landing opportunity at Kennedy Space Center was waived due to poor weather forecasts, and observed weather violations for the landing criteria.[91]After further evaluating weather patterns around Florida, managers on the ground chose to waive the second opportunity as well, and wait one more day to attempt to get the orbiter into Florida on Sunday.[92]Weather in California had excellent forecasts, so if the attempts on Sunday to land in Florida were not successful, the shuttle would be able to land at Edwards Air Force Base without weather being an issue.[91]

May 24 (Flight day 14, landing)

[edit]

TheAtlantiscrew had two Florida return opportunities for the day, as well as two for a California landing, giving the managers time to evaluate the weather and use California if necessary.[NASA 31]After choosing to pass on the first opportunity for KSC and evaluate the second, managers on the ground decided that the weather in Florida was too dynamic to risk bringing the orbiter in, and opted to land at Edwards Air Force Base instead.[1]The de-orbit burn was initiated at 14:24 UTC, a burn of the shuttle's engines that brought it out of orbit to begin the orbiter'sreentryinto theEarth's atmosphere.[1]Atlantissuccessfully landed at Edwards Air Force Base on Runway 22 at 8:39 am PDT after 197 orbits in space and a distance of approximately 5.2 million miles.[1] This was the last landing at Edwards for Atlantis.

After working through the checklists to safely power down the orbiter, the crew performed the traditional walk-around of the shuttle and met with employees from NASA. Speaking briefly to the press following the walk around, Altman joked, "I didn't realize it was going to be so hard to get back to the Earth! We're all thrilled to have the mission complete."[1]

During the post-landing briefing, Associate Administrator for Space Sciences Ed Weiler declared the mission a total success, and after noting the rocky road that it took to get the mission completed, said he considered the mission to be Hubble's Great American Comeback story, chapter two.[1]

This mission...was canceled January 16, 2004, if you'd have told me on that day I'd be sitting here five years later with a totally successful five-EVA mission, with a brand new Hubble once again that will probably operate well into the third decade of its life, I wouldn't have bet you a penny. But Hubble is the great American comeback story, chapter two. "– Ed Weiler[1]

Post landing

[edit]
A unique view ofAtlantisperched atop the modified Boeing 747 during its return ferry flight to Florida.

Following standard post-landing processing at Edwards Air Force Base,Atlantiswas lifted into the air using the Mate-DeMate device, and attached to the top of a modifiedBoeing 747,called aShuttle Carrier Aircraft(SCA) for its return flight to Florida.[93][NASA 32]After departing California on June 1, the flight made an overnight stop atBiggs Army AirfieldinEl Paso, Texas,and on June 2 made stops inSan Antonio, Texas,andColumbus, Mississippito refuel.[93][94]After performing a flyby of the coast, the SCA landed at Kennedy Space Center at 6:53 p.m EDT on June 2, 2009.[93]One of the heavier return flights,Atlantiswas still carrying the cargo from the mission in the payload bay, and weighed approximately one quarter of a million pounds.[93]Combined with the 747, the total weight of the vehicle was approximately six hundred thousand pounds.[93]Atlantiswas removed from the SCA and towed to theOrbiter Processing Facilitylate June 2 in preparation for its next mission,STS-129.[93]

Extra-vehicular activity

[edit]

Five back-to-backEVAswere planned for the mission.[NASA 7]Spacewalks one through four were originally scheduled to last six hours, thirty minutes, while the fifth spacewalk was scheduled to last five hours, forty-five minutes.[NASA 7]All five EVAs were conducted successfully, for a total time in EVA activity of thirty-six hours, fifty-six minutes.[NASA 7][NASA 24][NASA 33]

EVA Spacewalkers Start (UTC) End (UTC) Duration
EVA 1 John M. Grunsfeld
Andrew J. Feustel 		May 14, 2009
12:52 		May 14, 2009
20:12 		7 hours, 20 minutes
Replaced theWide Field and Planetary Camera 2(WFPC2) withWide Field Camera 3(WFC3), replaced the Science Instrument Command and Data Handling Unit, lubricated three of the shroud doors, and installed a mechanism for spacecraft to capture Hubble for de-orbit at the end of the telescope's life (Soft Capture Mechanism).[NASA 4][56][95]
EVA 2 Michael J. Massimino
Michael T. Good 		May 15, 2009
12:49 		May 15, 2009
20:45 		7 hours, 56 minutes
Removed and replaced all three of Hubble's gyroscope rate sensing units (RSUs). Removed and replaced the first of two battery unit modules.[NASA 20][63]
EVA 3 Grunsfeld
Feustel 		May 16, 2009
13:35 		May 16, 2009
20:11 		6 hours, 36 minutes
RemovedCOSTAR,stowed it for return; installed theCosmic Origins Spectrographin its place; removed four faulty electronics cards from theAdvanced Camera for Surveysand replaced them with a new electronics box and cable.[68][NASA 21]
EVA 4 Massimino
Good 		May 17, 2009
13:45 		May 17, 2009
21:47 		8 hours, 2 minutes
Removed and replaced an electronics card for theSpace Telescope Imaging Spectrograph(STIS). The spacewalk was extended due to problems removing a handrail as well as problems with a power tool, causing the spacewalk to end as the sixth longest EVA to that time.[65][NASA 22]
EVA 5 Grunsfeld
Feustel 		May 18, 2009
12:20 		May 18, 2009
19:22 		7 hours, 2 minutes
The twenty-third and final spacewalk to service Hubble, and last planned EVA from a shuttle airlock replaced the final battery module, installed Fine Guidance Sensor No. 3, removed degraded insulation panels from bays 5, 7 and 8, and installed three New Outer Blanket Layers (NOBLs) in their place, and removed and reinstalled a protective cover around Hubble's low-gain antenna.[NASA 24][79][96]

Wake-up calls

[edit]

NASA began a tradition of playing music to astronauts during theGemini program,which was first used to wake up a flight crew duringApollo 15.[NASA 34]Each track is specially chosen, often by their families, and usually has a special meaning to an individual member of the crew, or is applicable to their daily activities.[NASA 34][NASA 35]

Flight Day Song Artist/Composer Played for Links
Day 2 "Kryptonite" 3 Doors Down PilotGregory Johnson WAVMP3
TRANSCRIPT
Day 3 "Upside Down" Jack Johnson Mission SpecialistMegan McArthur WAVMP3
TRANSCRIPT
Day 4 "Stickshifts and Safetybelts" CAKE Mission SpecialistAndrew Feustel WAVMP3
TRANSCRIPT
Day 5 "God of Wonders" Third Day Mission SpecialistMichael Good WAVMP3
TRANSCRIPT
Day 6 "Hotel Cepollina"
(Parody ofHotel Californiain honor ofFrank Cepollina) 		Fuzzbox Piranha Mission SpecialistJohn Grunsfeld WAVMP3
TRANSCRIPT
Day 7 "New York State of Mind" Billy Joel Mission SpecialistMichael Massimino WAVMP3
TRANSCRIPT
Day 8 "Sound of Your Voice" Barenaked Ladies CommanderScott Altman WAVMP3
TRANSCRIPT
Day 9 "Lie in Our Graves" Dave Matthews Band McArthur WAVMP3
TRANSCRIPT
Day 10 "Theme from Star Trek" Alexander Courage STS-125 Crew WAVMP3
TRANSCRIPT
Day 11 "Cantina Band" John Williams STS-125 Crew WAVMP3
TRANSCRIPT
Day 12 "Galaxy Song" From the movieMonty Python's The Meaning of Life STS-125 Crew WAVMP3
TRANSCRIPT
Day 13 "Where My Heart Will Take Me"
(Theme fromStar Trek: Enterprise) 		Russell Watson STS-125 Crew WAVMP3
TRANSCRIPT
Day 14 "Ride of the Valkyries" Richard Wagner STS-125 Crew WAVMP3
TRANSCRIPT
In an end-of-mission twist, following the final wake up call, theAtlantiscrew played "Take Me Home"byPhil Collinsfor the Mission Control Orbit Three team as a thank you for their hard work during the mission, and their work to bring the orbiter home.

Contingency mission

[edit]
Main article:STS-400
Comparison of International Space Station and Hubble Space Telescope orbits

STS-125 was the only planned shuttle mission after theColumbiaaccidentto be launched into a low-inclination orbit that did not allow rendezvous with theInternational Space Station.[2]Due to the inclination and other orbit parameters of Hubble,Atlantiswould have been unable to use theInternational Space Stationas a safe haven in the event of structural or mechanical failure.[37][97]To preserve NASA's post-Columbiarequirement of having shuttleLaunch On Need(LON) rescue capability,STS-400was the flight designation given to theContingency Shuttle Crew Support(CSCS) mission which would have been flown byEndeavourin the eventAtlantisbecame disabled during STS-125.[98]AfterAtlantisperformed the late inspection and was cleared for re-entry,Endeavourwas officially released from stand-by status on Thursday, May 21.[88]

See also

[edit]

Media

[edit]
  • Space ShuttleAtlantislaunches from Launch Pad 39A atKennedy Space Centeras part of the STS-125 mission.
  • Animation showing the release of the Hubble Space telescope after the completion of Servicing Mission 4.

References

[edit]

Citations

[edit]
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NASA

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Public DomainThis article incorporatespublic domain materialfrom websites or documents of theNational Aeronautics and Space Administration.

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The Universe in a Mirror

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