Aqua Image of Calvinia (IMAGE) NASA/Goddard Space Flight Center Caption On Dec. 31, 2019, the MODIS instrument that flies aboard NASA's Aqua satellite provided a visible image of Tropical Storm Calvinia in the Southern Indian Ocean. Credit NASA Worldview 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.