A total solar eclipse will sweep across the continental United States in August for the first time since 1918.
A total solar eclipse will sweep across the continental United States in August for the first time since 1918. THE WASHINGTON POST NASA file photo via The Washington Post
A total solar eclipse will sweep across the continental United States in August for the first time since 1918. THE WASHINGTON POST NASA file photo via The Washington Post

The Great American Eclipse is 100 days away, and scientists are ready

May 21, 2017 07:10 AM