Cosmic Microwave Radiation Background Anisotropies (IMAGE) International School of Advanced Studies (SISSA) Caption This shows cosmic microwave radiation background anisotropies observed by Planck. Credit ESA/Planck Collaboration 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.