The Space Shuttle and the International Space Station (ISS)should be visible Tuesday and Wednesday nights. Even from
brightly-lit cities. Look skyward within a couple of hours of sunset should be able to spot them with naked eye, creeping across the sky like moving stars. They will become visible only when they are in sunlight and the observer is in deep twilight or darkness. This usually means shortly after dusk or before dawn.

What is most rare is the chance to see both the shuttle and the space station at the same time. Atlantis undocked from the ISS at 10:40 a.m.on Tuesday. The shuttle will remain at a relatively close distance to the space station until Thursday, June 21 when Atlantis is scheduled return to the Kennedy Space Center in Florida.

Look for them to travel northwest-to-southeast appearing as a pair of very "bright 'stars,", approaching magnitude -3 in brightness, about as bright as Jupiter and is four times brighter than Sirius, the brightest star in the night sky. The ISS should appear as the somewhat brighter object and will appear to be trailing Shuttle Atlantis as they move across the sky. With a telescope you should be able to make out details of the sprawling station. Traveling at approximately 18,000 mph , both should be visible from about one to four minutes as they glide with a steady speed across the sky.