Light Pillars appear when either natural or artificial light bounces off ice crystals floating close to the ground. In this case the air was so cold that the ice crystals were forming in the air, reflecting the city's street and business lights.
Read & Learn:
http://www.atoptics.co.uk/halo/lpil.htm
Photo: light pillars in North Bay, Ontario
Photo credit: Timothy Joseph Elzinga
#naturalphenomena #lightpillars #science
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