NASA has installed high-definition cameras on the International Space Station (ISS) exterior, and currently streams live back to earth images of our planet’s surface. The stream is then broadcast live on the Internet.
According to the official NASA description, the High Definition Earth Viewing (HDEV) experiment has placed four commercially available HD cameras on the exterior of the space station.
The cameras are enclosed in a temperature specific housing and are exposed to the harsh radiation of space. Analysis of the effect of space on the video quality, over the time HDEV is operational, may help engineers decide which cameras are the best types to use on future missions.
This investigation conducts Earth observations using high definition video which provides broad area or panoramic views of how the Earth looks from the International Space Station.
The live stream can be seen below. As the cameras rotate, a short grey or black screen shows.