Quark-gluon Plasma (IMAGE) University of Copenhagen - Niels Bohr Institute Caption The figure shows how a small, elongated drop of quark-gluon plasma is formed when two atomic nuclei hit each other a bit off center. The angular distribution of the emitted particles makes it possible to determine the properties of the quark-gluon plasma, including the viscosity. Credit (Credit: State University of New York) Usage Restrictions . (Credit: State University of New York) 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.