Atlantis undocked from the station for the final time of the Space Shuttle Program at 2:28 a.m. EDT Tuesday. The first landing opportunity for Atlantis is scheduled at Kennedy Space Center at 5:56 a.m. on Thursday. The deorbit burn would occur at 4:48 a.m. during the shuttle's 200th orbit.

› Read more about STS-135 at http://www.nasa.gov/mission_pages/shuttle/main/index.html

Amazing!

At 0839UTC, observing from Barbados, I saw what is, in my opinion,...The ninth wonder of the modern World....

Saw both the Shuttle and the ISS, flying in formation. Just a fraction of a second apart, but both dots of light clearly visible.

ISS was shining brilliantly. Almost as bright as Jupiter (which it appeared to pass close to from my viewing location). The shuttle was leading it by just a half, or quarter of a second or so.

Perfect view for the first half of the pass. The second half, from the highest point all the way down to the horizon, was obscured by cloud.