The Bullet Group Showing Galaxies (image) World Scientific Share Print E-Mail Caption This is a composite image of the Bullet Group showing galaxies, hot gas (shown in pink) and dark matter (indicated in blue). Credit ESA / XMM-Newton / F. Gastaldello (INAF/IASF, Milano, Italy) / CFHTLS. Usage Restrictions None Share Print E-Mail 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.