Bubbbles (image) Moscow Institute of Physics and Technology Share Print E-Mail Caption Fig. 1. X-ray and gamma-ray emission bubbles in the Milky Way. (NASA) Credit NASA 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.