A 3-Color X-ray Image of the Supernova Remmant Cassiopeia A (image) Spanish National Research Council (CSIC) Share Print E-Mail Caption This is a 3-color X-ray image of the supernova remmant Cassiopeia A. Credit NASA Usage Restrictions You may state that the image may only be used with appropriate caption or credit. Share Print E-Mail 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.