Servicing the Hubble: Shuttle mission plans refined
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: December 5, 2005

Preparations for a shuttle mission to upgrade and repair the Hubble Space Telescope in late 2007 or early 2008 are picking up steam as engineers map out the details of a five-spacewalk flight designed to keep the venerable observatory alive and well through at least 2013.

Servicing Mission 4, canceled by former NASA Administrator Sean O'Keefe in January 2004, is expected to be officially reinstated by current Administrator Mike Griffin if the next shuttle mission, STS-121, goes smoothly and if ongoing analyses show the flight can be conducted in relative safety.

More at: http://spaceflightnow.com/news/n0512/05hubbleservicing/