The International Space Station in our Sky

Three nights ago (2009 May 11), I decided to go out to experience a lovely spring night. The stars were out and I could recognize the constellations - Gemini, Leo (with Saturn), Ursa Major and the Big Dipper. I then saw a point of light as bright as Jupiter move steadily across the sky from west to east. Its speed and brightness were steady, and I did not see any other lights near it, which would identify it as an airplane. I watched it cross the southern sky and disappear in the east. The Hubble-saving Shuttle had just launched, and I wonder if it was that. I went back inside and went to Heavens Above, at www.heavens-above.com . (You must use a hyphen. If you use any other punctuation, a space, or nothing, you get a nuisance site of some sort instead.) I found that it was the International Space Station. It is the first time I walked outside without knowing about the next ISS pass and found the station in the sky.