Binary Black Hole System in OJ287 (IMAGE) Tata Institute of Fundamental Research Caption An illustration of the binary black hole system in OJ287. The predictions of the model are verified by observations. Credit Gary Poyner, UK 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.