NASA 3-D Look at Tropical Storm Sanvu (IMAGE) NASA/Goddard Space Flight Center Caption On May 23, the TRMM passed over Sanvu again and captured more data. The 3-D image created from TRMM PR data revealed that an eye was almost formed indicating that Sanvu may soon be a typhoon. Several towers in the forming eye wall extend to heights above 16 km (~9.94 miles). Credit NASA/TRMM, Hal Pierce 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.