The World's Most Surreal Natural Phenomena Are Finally Explained
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Mother-Of-Pearl Clouds
While it might not look like we’re staring at something real, these prismatic clouds can be seen at their best in the polar regions. The prismatic clouds can also be called the “mother of pearls”, and are usually only really visible during twilight.
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So if you’re ever planning to catch them, the best time to do so is at the crack of dawn or right after sunset.
