Monday's mission replaced batteries and part of the pointing system.
Astronauts on the space shuttle Atlantis have released the Hubble Space Telescope after a series of spacewalks to repair and upgrade the observatory.
Astronaut Megan McArthur liberated the telescope from Atlantis' robotic arm at 0857 EDT (1357 BST), marking the last human contact with Hubble.
Pilot Greg Johnson then used two short burns of the shuttle's thrusters to gently back away from the telescope.
Space shuttle Atlantis is scheduled to return to Earth on Friday. Contd............
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