Partial lunar eclipses are typically not considered as newsworthy as total lunar eclipses. However, the one taking place overnight on November 18 and 19, 2021, is definitely worthy of a mention. It is the year's final partial lunar eclipse — and the longest one in 1000 years. With 97 percent of the Moon slipping into Earth's shadow, the celestial event also promises to be spectacular. The eclipse will be visible to a large area of the globe. Some of the best views will be reserved for North American residents.