NASA's mapping of the eclipse provides precise path of totality

NASA data visualizer Ernie Wright explains how he accounted for the jagged surface of the moon and the varying elevation in the U.S. to precisely map the path of totality for the Aug. 21 solar eclipse.
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NASA data visualizer Ernie Wright explains how he accounted for the jagged surface of the moon and the varying elevation in the U.S. to precisely map the path of totality for the Aug. 21 solar eclipse.

Tips for total solar eclipse: Where and when to watch, and how to use those glasses

August 18, 2017 07:00 AM