Cosmic Web (IMAGE) University of Colorado at Boulder Caption A simulation of the cosmic web, or diffuse tendrils of gas connecting galaxies across the universe. Credit NASA, ESA, E. Hallman (CU Boulder) Usage Restrictions Free to use with citation 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.