M81 (IMAGE) Instituto de Astrofísica de Canarias (IAC) Caption An example of a nearby spiral galaxy, M81, where the bulge and the disc are easily identified. Credit NASA/JPL-Caltech/ESA/Harvard-Smithsonian CfA. 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.