HDEV External View (IMAGE) NASA/Johnson Space Center Caption This is a view of the High Definition Earth Viewing equipment installed on the exterior of the International Space Station's Columbus laboratory. The cameras are enclosed in a temperature specific housing and are exposed to the harsh radiation of space. Credit NASA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.