image: Infrared instruments enable satellites to gather imagery on storms at night because they read temperature. At NASA's Goddard Space Flight Center in Greenbelt, Md. an animation of imagery from the VIIRS instrument aboard NASA-NOAA's Suomi NPP satellite imagery showed the positions of Tropical Storm Isaias from Aug. 2 to Aug. 5 at night as it moved north along the U.S. East Coast. NASA's Earth Observing System Data and Information System (EOSDIS) Worldview application provides the capability to interactively browse over 700 global, full-resolution satellite imagery layers and then download the underlying data. Many of the available imagery layers are updated within three hours of observation, essentially showing the entire Earth as it looks "right now." view more
Credit: Credit: Courtesy: NASA Worldview, Earth Observing System Data and Information System (EOSDIS).