Supermassive Black Hole Surrounded by Matter (image) Durham University Share Print E-Mail Caption This is a j-peg artist's impression of a supermassive black hole at the center surrounded by matter flowing onto the black hole in what is termed an accretion disk. Also shown is an outflowing jet of energetic particles, believed to be powered by the black hole's spin. Credit Image credit (NASA/JPL-Caltech). Usage Restrictions Please credit NASA/JPL-Caltech. 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.