How to Watch Today's Solar Eclipse
Aug 20, 2017, 04:01 PM
A total solar eclipse that crosses the U.S. from coast to coast will be visible on Aug. 21, 2017, and millions of people across the country will witness it in person or by watching live video online. In a total solar eclipse, the moon moves directly between the Earth and the sun, completely obscuring the sun's face. During the brief minutes of the total eclipse, the sky darkens and the air cools.
The Aug. 21 eclipse will be the first total solar eclipse in the contiguous U.S. since 1979.