How scientists used NASA data to predict the corona of the Aug. 21 Total Solar Eclipse
(PHYSorg.com Space & Earth)

When the total solar eclipse swept across the United States on Aug. 21, 2017, NASA satellites captured a diverse set of images from space. But days before the eclipse, some NASA satellites also enabled scientists to predict what the corona-the Sun`s outer atmosphere-would look like during the eclipse, from the ground. In addition to offering a case study to test our predictive abilities, the predictions also enabled some eclipse scientists to choose their study targets in advance.