An immovable bolt and a failed power tool were among several stumbling blocks that almost stalled the repair of another Hubble Space Telescope science instrument during Sunday's spacewalk.
As Atlantis astronauts ventured outside the space shuttle Saturday, they faced a challenging task: reviving a failed camera on the Hubble Space Telescope that was never designed to be repaired in space.
It was a longer-than-expected spacewalk, but Hubble now has six new gyroscopes and three new batteries.
Take a peek inside Mission Control during the first spacewalk of Servicing Mission 4. Tension runs high as a single bolt briefly threatens Hubble's future.
Space shuttle Atlantis captures the Hubble Space Telescope during mission STS-125, the final servicing mission to the orbiting observatory.
Astronaut Mike Massimino takes you on a tour of space shuttle Atlantis as the STS-125 crew works through its first full day in space.
Space shuttle Atlantis lifts off to catch up to and service NASA's Hubble Space Telescope.
A love of astronomy helped one college student set a course for a variety of science internships at JPL.
The astronauts of STS-125 strap into their seats for the launch of Atlantis.
Two of the unsung heros of NASA's Hubble mission are a camera and the team from JPL that put it all together.