Contact: Suzanne Taylor Muzzin
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.
Related news release: Galaxy Zoo hunters help astronomers discover rare 'Green Pea' galaxies