Infrared Image of Tropical Storm Dolly (image) NASA/Goddard Space Flight Center Caption The AIRS instrument aboard NASA's Aqua satellite captured this infrared image of Tropical Storm Dolly on Sept. 2 at 3:59 a.m. EDT as it neared the east coast of Mexico. Purple areas indicate the strongest thunderstorms. Credit NASA JPL, Ed Olsen 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.