Tropical Cyclone Nilam (IMAGE) NASA/Goddard Space Flight Center Caption The AIRS instrument aboard NASA's Aqua satellite captured this image of Tropical Cyclone Nilam on Oct. 29 at 2029 4:29 p.m. EDT. The strongest storms with coldest cloud top temperatures appear in purple and were covering Sri Lanka. The purple indicates temperatures as cold as -63F (-52C). Credit Credit: 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.