electron-proton collision (IMAGE) DOE/Brookhaven National Laboratory Caption Data from past proton-electron collisions provide strong evidence of entanglement among the proton's sea of quarks (spheres) and gluons (squiggles), which may play an important role in their strong-force interactions. Credit Valerie Lentz/Brookhaven National Laboratory Usage Restrictions OK for use with stories about this resesarch 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.