total solar eclipse

Total solar eclipse stuns viewers in South America

On Tuesday, a total solar eclipse stretched across South America. The path of totality, where the moon visibly blocks the sun, spanned parts of Chile and Argentina. Outside the path of totality, a partial solar eclipse was visible.

Safety tips for the solar eclipse

The total solar eclipse will be seen Aug. 21 across the U.S. Whether you're in the path of totality or hope to take a peek at the partially eclipsed sun elsewhere, here's how to keep your eyes safe, according to NASA.