TRMM Collage of Cyclone Ian (image) NASA/Goddard Space Flight Center Caption These 4 TRMM satellite images from Jan. 10-12 show the strengthening and weakening of Cyclone Ian. Red indicates heavy rainfall. Credit Image Credit: SSAI/NASA, Hal Pierce Usage Restrictions None 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.