How to watch the total solar eclipse online

How to watch the total solar eclipse online

Lucky skywatchers in Southeast Asia get a rare front-row seat to a total eclipse on March 8 and 9, and Pacific islanders will see a still-dazzling partial eclipse. But the rest of the world doesn’t have to miss out: If you can’t hop a plane to the middle of the Pacific Ocean, you can watch it live online on National Geographic’s website.

The moon passes between Earth and the sun every month, but a total solar eclipse happens only when the three celestial bodies are perfectly aligned. And this particular eclipse is even more special: It’s happening while the moon is at its closest point to Earth—called perigee—making the moon appear larger in the sky, as a “supermoon.”

The moon casts its dark central shadow, called the umbra, onto a very narrow strip along the surface of the Earth. The strip from which the upcoming total eclipse will be visible lies mostly over the Pacific Ocean. Read more

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