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On April 8, 2024, a total solar eclipse will pass over North America. As the moon transits between sun and Earth, blocking the light of the sun, the sky over the U.S., Canada and Mexico will darken as if it was dusk or dawn, NASA explains. It will be 2044 before another total solar eclipse is visible from the contiguous U.S. (A less-dramatic annular solar eclipse, when the moon doesn’t entirely…