Comparative Sizes of Milky Way and Compact Galaxy (image) Yale University Share Print E-Mail Caption This illustration shows the comparative sizes of our Milky Way Galaxy and an ultracompact galaxy, which existed in the early universe. Although the compact galaxy is only a fraction of the size of our Milky Way, it contains the same number of stars. The small, dense galaxy could fit inside the central hub of our Milky Way. Credit NASA, ESA, A. Feild (STScI) and P. van Dokkum (Yale) Usage Restrictions with credit given 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.