Found through an article linked on Slashdot.org are pictures of the behind the scenes preparations of the shuttle Atlantis for a mission to Hubble.
http://www.boston.com/bigpicture/2008/09/preparing_to_rescue_hubble.html
Also Endeavor has been prepared as rescue ship for Atlantis and is the pad marking the first time since 2001 two shuttles have been prepared at the same time.
http://www.orlandosentinel.com/news/space/orl-shuttle-endeavor-091908,0,850991.story
If Endeavor isn't required as a rescue ship it will fly for STS-126 (mentioned on Slashdot but not in the article).
http://www.boston.com/bigpicture/2008/09/preparing_to_rescue_hubble.html
Also Endeavor has been prepared as rescue ship for Atlantis and is the pad marking the first time since 2001 two shuttles have been prepared at the same time.
http://www.orlandosentinel.com/news/space/orl-shuttle-endeavor-091908,0,850991.story
If Endeavor isn't required as a rescue ship it will fly for STS-126 (mentioned on Slashdot but not in the article).