Microwave of Mirinae Shows Forming Eye (IMAGE) NASA/Goddard Space Flight Center Caption This NASA AIRS microwave image of Mirinae from Oct. 27 shows the development of an eye (purple area resembling a half moon). Cold areas (yellow-green) indicate precipitation or ice in the cloud tops. The purple area has the coldest cloud temperatures (as cold as -63F), and suggest cloud tops are near the tropopause. 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.