Massimino removes the handrail by taking out fasteners and manually pulling it off. › Space Shuttle Section | › Hubble Servicing Mission
Image above: Mission specialists Mike Massimino and Mike Good work outside space shuttle Atlantis during the fourth spacewalk of STS-125. Photo Credit: NASA TV
STS-125 Crew Conducting Fourth Spacewalk
STS-125 mission specialists Mike Massimino and Mike Good are conducting the mission’s fourth spacewalk today, continuing repairs and improvements that will extend the Hubble Space Telescope’s life into the next decade. The spacewalk began at 9:45 a.m. EDT.
The bulk of the spacewalk will be spent working with the telescope’s Space Telescope Imaging Spectrograph, or STIS. Massimino and Good will replace a low-voltage power supply board, which contains a failed power converter. Due to this power supply failure, STIS has been in “safe mode” since August 2004.
The spacewalkers also will install one of two new protective thermal insulation panels delivered by space shuttle Atlantis. This insulation will be installed on the telescope’s bay 8 door.
Today’s spacewalk is scheduled to last 6½ hours.
› View the Launch of Atlantis in High Definition (HD)
STS-125 Additional Resources
› Mission Summary (407KB PDF)
› Press Kit (4.8MB PDF)
› Meet the Crew
› Learn About the Mission
0 comments:
Post a Comment