Gluon Fluctuations inside a Proton (IMAGE) DOE/Brookhaven National Laboratory Caption These are four snapshots of the gluon density in a proton at high energy, as modeled by M&auml;ntysaari and Schenke. Red indicates high gluon density, blue indicates low density. Credit Brookhaven National Laboratory Usage Restrictions OK for use with stories about this research. 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.