Solar eclipse: Eye health warning

On Monday, Aug. 21, 2017, the U.S. will be treated to a total eclipse of the sun.
The eclipse will be visible — weather permitting — across all of North America. The entire continent will experience a partial eclipse lasting two to three hours. Anyone within a 70-milewide path that stretches through 14 states from Oregon to South Carolina will experience a total eclipse. During those brief moments — when the moon completely blocks the sun’s bright
face for about two minutes — day will turn into night, making visible the otherwise hidden solar corona, the sun’s outer atmosphere. Bright stars and planets will become visible as well. Birds will fly to their nighttime roosts. Nocturnal insects such as cicadas and crickets will buzz and chirp.
For NASA, the eclipse provides a unique opportunity to study the sun, Earth, moon and their interaction, because of the eclipse’s long path over land coast to coast. Eleven NASA and NOAA satellites, the International Space Station, more than 50 high-altitude balloons, and hundreds of ground-based assets will take advantage of this rare event over 90 minutes, sharing the science and the beauty of a total solar eclipse with all. Via live streams and a NASA TV broadcast, NASA will bring the Aug. 21 eclipse live to viewers
everywhere in the world.

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