torus (IMAGE) Dartmouth College Caption The doughnut-shaped ring surrounding many supermassive black holes tells researchers about how fast the space object is feeding and can change how the black hole is viewed from Earth. Credit ESA/NASA, the AVO project and Paolo Padovani Usage Restrictions Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ https://esahubble.org/copyright/ 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.