Space station tracking is based on software running on the n2yo.com website that determines the orbit and the current position of the orbiter using the latest keplerian data provided by US Air Force Space Command (AFSPC). For the best experience to compare Earth images as seen from Space Station with Google Maps, feel free to adjust the zoom and the type of the map from the controls available on the top side of the widget.
Live streaming video by Ustream
The Ustream video from the station is available only when the complex is in contact with the ground through its high-speed communications antenna and NASA's Tracking and Data Relay Satellite System. During "loss of signal" periods, you will see a blue screen.
Since the station orbits the Earth once every 90 minutes, it sees a sunrise or a sunset every 45 minutes. When the station is in darkness, external camera video may appear black, but also may provide spectacular views of city lights below.