On April 8, a total solar eclipse will be visible in 15 U.S. states that sit along the path of totality. But how does the path of totality work, and where's the best viewing spot? Here's everything ...

In the U.S., 31 million people already live inside the path of totality. Scroll down to see the list of U.S. cities where the April 8 total solar eclipse will be visible, the duration of the eclipse ...

Come Monday, millions of Americans from Texas to Maine will stop what they're doing to step outside and spend a few minutes gazing skyward. Few celestial events have the power to capture our ...