Great American Eclipse

A woman looks through a telescope on the football field at Madras High School the evening before a solar eclipse in Madras, Oregon, Aug. 20, 2017.

Watch: NASA streamed the Great American Eclipse

Science

Millions of sky-gazers staked out viewing spots across the United States Monday to see the sun briefly disappear behind the moon, in the first total solar eclipse in 99 years to cast a shadow on the entire continent. You can watch it here.

A United States map showing the path of totality (dark grey) for the August 21 total solar eclipse.

What’s your game plan for the Great American Eclipse?

Science
A composite image of a partial (left) and total (right) solar eclipse, taken in March 2015.

What you need to know about this month’s total solar eclipse

Science