(IMAGE) Université de Genève Caption A 31.5 solar-mass black hole with an 8.38 solar-mass black hole companion viewed in front of its (computer generated) stellar nursery prior to merging. Credit © Aaron M. Geller / Northwestern CIERA & NUIT-RCS; ESO / S. Brunier Usage Restrictions none License Original 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.