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A stunning video from Basalt, Colorado, captured on August 19 a rare cosmic event: a blue moon, that was also a supermoon, ascending into the sky. The moon was a rare event where a supermoon, when the moon is closest to Earth, and a blue moon coincided, according to https://science.nasa.gov/solar-system/skywatching/the-next-full-moon-is-a-supermoon-blue-moon/?utm_source=TWITTER&utm_medium=NASA&utm_campaign=NASASocial&linkId=554996184 NASA . This rare event appeared full for three days across different time zones, NASA said. (Footage by Barry Stevenson/Storyful via Getty Images UGC)