photograph of the solar eclipse

NASA's Solar Dynamics Observatory spacecraft captured this image of the moon crossing in front of its view of the sun on January 30, 2014.

The Great American Eclipse

August 21 marks a rare opportunity to witness one of nature’s most dazzling spectacles: the first total eclipse of the sun to sweep the country in nearly a century.

By Christine H. O'Toole



Receive more stories in your email

Sign up