AIRS Image of Rachel (IMAGE) NASA/Goddard Space Flight Center Caption NASA's Aqua satellite passed over the large Tropical Storm Rachel on Sept. 25 at 4:41 p.m. EDT and saw colder cloud tops (purple) indicating thunderstorm heights were increasing and it was strengthening. Credit Image 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.