The International Space Station’s
High Definition Earth Viewing (HDEV) experiment is an external camera platform
located on the Columbus module of the space station. In addition to providing
beautiful views of Earth, one of the goals of HDEV is to monitor the longevity
and quality of its image sensors in the space environment. HDEV operations
began April 30, 2014 and only a single bad pixel has been identified.
engineering processes and camera system longevity expanded into having
avid Earth-viewing followers and educational activities. To date, HDEV has
reached over 300 million total views on UStream.