Aqua image of Sebastien (IMAGE) NASA/Goddard Space Flight Center Caption On Nov. 19, 2019, the MODIS instrument that flies aboard NASA's Aqua satellite provided a visible image of newly formed Tropical Storm Sebastien, just east of the Northern Leeward Islands in the Atlantic Ocean. Credit 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.