ISS Fan Club

If you're out watching the twilight sky in the time frame from 45 to 90 minutes before sunrise, or 45 to 90 minutes after sunset, you'll might see a few "moving stars." They are most likely artificial satellites.

The brightest of all is the International Space Station, and this month provides some great opportunities to see it from just about anywhere.

http://www.space.com/spacewatch/080711-ns-space-station.html