Universe with and without axions (IMAGE) University of Toronto Caption A computer simulation of a section of the universe with and without axions showing how the dark matter cosmic web structure is less clumpy if containing axions. For scale, the Milky Way galaxy would sit inside one of the small green dots that are called halos. Credit Alexander Spencer London/Alex Laguë. Usage Restrictions For editorial use 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.