[NOTE (added May 22, 2009): The landing has been postponed from Friday to Saturday at least. The astronauts get a day off! In this case that's literally true; they have no tasks to perform so they get tosit back float and look out the windows. Check the links below for more info on when the landing will be scheduled.]
After a highly successful visit with Mr. Hubble's telescope, the Space Shuttle Atlantis is scheduled to land in Florida at 10:00 a.m. Eastern time (14:00 GMT) on Friday. However, weather is rotten at the Cape, and even the secondary time of 11:39 local (15:39 GMT) is in doubt. Check the NASA shuttle page for updates.
That first touchdown time is at 8:00 a.m. my time, and I have some Clark Kent duties then, so my ability to live-tweet the event has a low probability. The later time is even worse, so don't count on me for news. If I can I'll have NASA TV playing at BA HQ, and I'll post when I can. I do really want to watch them land, and see the end of the mission that treated my 'scope so well.