AIRS Image of Ava (IMAGE) NASA/Goddard Space Flight Center Caption The AIRS instrument aboard NASA's Aqua satellite captured an infrared image of Tropical Storm Ava on Jan. 4 at 5:05 a.m. EST (1005 UTC). Coldest cloud tops and strongest storms appear in purple. 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.