Jupiter's 3 Red Spots (IMAGE) University of California - Berkeley Caption Hubble Space Telescope close-up of three red ovals on Jupiter, the smallest of which (3,000 miles in diameter) is new and may merge with the Great Red Spot (10,000 miles in diameter) in August. Red Spot Jr. is the medium-sized red oval, about 5,000 miles across. Credit Imke de Pater, Michael Wong, Philip Marcus and Xylar Asay-Davis (UC Berkeley), and Chris Go (Cebu, Philippines) Usage Restrictions None License Licensed content 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.