Green Peas (image) Yale University Caption The Green Peas stuck out because of their small size and green color compared to the more common galaxies -- such as the one on the bottom right -- that Galaxy Zoo users were used to seeing. Credit Carolin Cardamone and Sloan Digital Sky Survey Usage Restrictions With appropriate credit. 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.