AIRS Image of Sonca (IMAGE) NASA/Goddard Space Flight Center Caption On July 24 at 1:41 a.m. EDT (0541 UTC) the AIRS instrument aboard NASA's Aqua satellite captured this infrared image of Tropical Storm Sonca making landfall in Vietnam. The image showed an area of powerful storms with very cold cloud tops (purple) surrounding the center. 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.