The pre-dawn hours of January 31 will play host to an incredibly rare celestial convergence -- a "super blue blood moon." A "supermoon" is when a full moon occurs at the same time as its perigee, the closest point of the moon's orbit with Earth. The result: the moon appears larger than normal and NASA is predicting this one will be 14% brighter than usual. Chances are you have used the phrase "once in a blue moon" -- so now you know where it came from. Although it does not have a scientific definition, a "blood moon" occurs during a lunar eclipse when faint red sunbeams peek out around the edges of the Earth, giving it a reddish, copper color.
Eager stargazers living in North America, Alaska or Hawaii will be able to see the eclipse before sunrise on Wednesday, according to NASA. For those in the Middle East, Asia, eastern Russia, Australia and New Zealand, the "super blue blood moon" will be visible during moonrise on the evening of January 31. As long as the weather doesn't try to ruin things, observers in Alaska, Australia, eastern Asia and Hawaii will be experience the whole phenomenon from start to finish. For those living in the US, NASA says the best spots to watch the entire celestial show will be in California and western Canada.
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https://www.cnn.com/2018/01/26/world/super-blue-blood-moon-guide-2018-intl/index.html
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