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NASA's High Definition Earth Viewing (HDEV) experiment places four commercially available HD cameras on the exterior of the International Space Station and uses them to stream live video of Earth for viewing online. The cameras are enclosed in a temperature specific housing and are exposed to the harsh radiation of space. 


You can see the ISS tracked in real time across the surface of the Earth here


Live video from the ISS  includes internal views when the crew is on-duty and Earth views at other times. The video is accompanied by audio of conversations between the crew and Mission Control.

  • The station orbits the Earth once every 90 minutes.

  • Tune in for a sunrise or a sunset about every 45 minutes.

  • When the station is in darkness, external camera video may appear black, but can sometimes provide spectacular views of lightning or city lights below.

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