Thousands of Faint Galaxies (image) NASA/Goddard Space Flight Center Caption Hiding among these thousands of galaxies are faint dwarf galaxies residing in the early universe, between two and six billion years after the big bang, an important time period when most of the stars in the universe were formed. Some of these galaxies are undergoing starbursts. Credit NASA and ESA Usage Restrictions None 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.