NASA AIRS Infrared Image of Nida and 97W (IMAGE) NASA/Goddard Space Flight Center Caption This infrared image from AIRS shows Nida fading top left (in purple and blue) on Dec. 2 at 16:11 UTC (11:11 a.m. ET) and System 97W developing (bottom right). The highest, coldest, thunderstorm cloud tops are in purple (as cold as -63F). 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.