This is astonishing, especially after the movie Gravity. I didn't know we have so many satellites up there. One thing that always keeps me alert is the amount of space litter. My friend said Gravity makes him lost interest in space travel and this image has stopped me ever wanting to go up there. Despite the distance between satellite, they eventually will become useless and many are destroyed in the space due to security reason.
Kudos to people who work on space mission, getting the right window and right path precisely is really difficult given the amount of litter and traffic we have right now...
I would be interested in getting a map labels the ownership of each satellite and what each of them does. I suspect there are clusters, based on country and companies. I'd like to see an interactive map like Google Map and Google Earth looking at Earth and satellites.