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Astronauts Complete Hubble Repairs In Final Spacewalk

Date:
May 19, 2009
Source:
NASA
Summary:
Human hands have touched the Hubble Space Telescope for the last time. Astronauts spent seven hours and two minutes putting the finishing touches on the telescope in the final spacewalk from a space shuttle airlock.

Tethered to the end of the remote manipulator system arm, which was controlled from inside Atlantis' crew cabin, STS-125 astronaut Andrew Feustel navigates near the Hubble Space Telescope, duing the mission's third spacewalk on May 16, 2009. Astronaut John Grunsfeld signals to his crewmate from just a few feet away. Astronauts Feustel and Grunsfeld were continuing servicing work on the giant observatory, which was locked down in the cargo bay of shuttle Atlantis.
Credit: Image courtesy of NASA

Human hands have touched the Hubble Space Telescope for the last time. Astronauts Andrew Feustel and John Grunsfeld spent seven hours and two minutes on May 18 putting the finishing touches on the telescope in the final spacewalk from a space shuttle airlock.

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During the STS-125 mission’s five spacewalks, Atlantis’ crew completed all of the mission objectives to improve Hubble's view of the universe.

Over the course of the mission’s five spacewalks, the crew added two new science instruments, repaired two others and replaced hardware that will extend the telescope's life at least through 2014. The five spacewalks lasted 36 hours and 56 minutes all together. There have been 23 spacewalks devoted to Hubble, totaling 166 hours and six minutes.

The spacewalkers began Monday’s work early and stepped quickly through the main focus, swapping a battery module from Bay 3 with a fresh module and removing and replacing the Fine Guidance Sensor (FGS) 2.

With that work complete, they installed New Outer Blanket Layers (NOBL) on three bays on the outside of the telescope, one of which was a leftover task from Sunday’s spacewalk and the third was a bonus task.

About four months of activities are planned for checking out and calibrating the instruments before scientific observations can begin again.


Story Source:

The above story is based on materials provided by NASA. Note: Materials may be edited for content and length.


Cite This Page:

NASA. "Astronauts Complete Hubble Repairs In Final Spacewalk." ScienceDaily. ScienceDaily, 19 May 2009. <www.sciencedaily.com/releases/2009/05/090519100010.htm>.
NASA. (2009, May 19). Astronauts Complete Hubble Repairs In Final Spacewalk. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2009/05/090519100010.htm
NASA. "Astronauts Complete Hubble Repairs In Final Spacewalk." ScienceDaily. www.sciencedaily.com/releases/2009/05/090519100010.htm (accessed March 31, 2015).

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