You one thing that amazes me is in all these sightings of UFO's no one seems to be able to take a good picture. They always seem to get pics of planes, stars, accidents, some cops beating up a slim bag, but never of a UFO.
As far as Canny picking up signals from the Space Station, not uncommon, hit the right frequency and then have the sun spots in the right aliegnment and you have it made. I would right down the frequencies cause you may want to listen in again, they generally stick with the same ones unless they need to say something they dont want the general public to hear then they go to a scrambled band. Of coarse understand that as the shuttle passes overhead you only have 30 min to 1 hour to hear them.
When you get them you can email them to me and I will program them into my ham radio as well.