NASA - National Aeronautics and Space Administration

S125-E-009420 (17 May 2009) --- Astronaut Michael Good, STS-125 mission specialist, attired in his Extravehicular Mobility Unit (EMU) spacesuit, is pictured in the Space Shuttle Atlantis' airlock prior to the start of the mission's fourth session of extravehicular activity (EVA).

S125-E-009514 (17 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, looks through a window on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day seven activities.

S125-E-009515 (17 May 2009) --- Astronaut Andrew Feustel, STS-125 mission specialist, works on the aft flight deck of the Earth-orbiting Space Shuttle Atlantis during flight day seven activities.

S125-E-009540 (17 May 2009) --- Astronaut Michael Good, STS-125 mission specialist, positioned on a foot restraint on the end of Space Shuttle Atlantis' remote manipulator system (RMS), participates in the mission's fourth session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the eight-hour, two-minute spacewalk, Good and astronaut Mike Massimino (out of frame), mission specialist, continued repairs and improvements to the Space Telescope Imaging Spectrograph (STIS) that will extend the Hubble's life into the next decade.

S125-E-009542 (17 May 2009) --- Astronaut Michael Good, STS-125 mission specialist, positioned on a foot restraint on the end of Space Shuttle Atlantis' remote manipulator system (RMS); and astronaut Mike Massimino (lower right, partially out of frame), mission specialist, participate in the mission's fourth session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the eight-hour, two-minute spacewalk, Good and Massimino continued repairs and improvements to the Space Telescope Imaging Spectrograph (STIS) that will extend the Hubble's life into the next decade.

S125-E-009190 (17 May 2009) --- A computer monitor showing animation of an extravehicular activity (EVA) is visible in this image photographed by a STS-125 crewmember in a darkened flight deck on the Earth-orbiting Space Shuttle Atlantis.

S125-E-009243 (17 May 2009) --- Astronaut Michael Good, STS-125 mission specialist, positioned on a foot restraint on the end of Atlantis' remote manipulator system (RMS), and astronaut Mike Massimino (bottom), mission specialist, participate in the mission's fourth session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the eight-hour, two-minute spacewalk, Good and Massimino continued repairs and improvements to the Space Telescope Imaging Spectrograph (STIS) that will extend the Hubble's life into the next decade.

S125-E-009252 (17 May 2009) --- Astronaut Michael Good, STS-125 mission specialist, participates in the mission's fourth session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the eight-hour, two-minute spacewalk, Good and astronaut Mike Massimino (out of frame), mission specialist, continued repairs and improvements to the Space Telescope Imaging Spectrograph (STIS) that will extend the Hubble's life into the next decade.

S125-E-008633 (17 May 2009) --- Astronauts Michael Good (left) and Mike Massimino, both STS-125 mission specialists, participate in the mission's fourth session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the eight-hour, two-minute spacewalk, Massimino and Good continued repairs and improvements to the Space Telescope Imaging Spectrograph (STIS) that will extend the Hubble's life into the next decade.

S125-E-008639 (17 May 2009) --- Astronaut Michael Good, STS-125 mission specialist, participates in the mission's fourth session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the eight-hour, two-minute spacewalk, Good and astronaut Mike Massimino (out of frame), mission specialist, continued repairs and improvements to the Space Telescope Imaging Spectrograph (STIS) that will extend the Hubble's life into the next decade.