AIRS Image of Sandra (IMAGE) NASA/Goddard Space Flight Center Caption Nov. 24, NASA's Aqua satellite captured infrared data on Tropical Storm Sandra as it was strengthening. Purple indicates cloud top temperatures near -63F/-53C and powerful thunderstorms. Credit Credits: NASA JPL, Ed Olsen 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.