A total solar eclipse happens somewhere on Earth once every year or two. What is an eclipse? Learn more about how solar eclipses happen, the four types of eclipses, and how to view the sun safely if you’re within the path of totality.
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Eclipse map adapted with permission: https://www.exploratorium.edu/eclipse
Solar Eclipse 101 | National Geographic
https://youtu.be/cxrLRbkOwKs
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