Orbiting Black Holes (IMAGE) University of New Mexico Caption Artist's conception shows two supermassive black holes, similar to those observed by UNM researchers, orbiting one another more than 750 million light years from Earth. Credit Joshua Valenzuela/UNM 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.