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In Washington, the eastern parts of the state may provide the best views of tonight's lunar eclipse. See expected cloud cover percentages for the nation.

Earth’s shadow will block most of the light that illuminates the lunar surface, creating what is known as a blood moon.

“In a total lunar eclipse, the entire Moon falls within the darkest part of Earth’s shadow, called the umbra. When the Moon is within the umbra, it appears red-orange. Lunar eclipses are sometimes ...