Stig Östlund

tisdag, januari 31, 2017

On Jan. 24th, photographer Dave Bell of Pinedale, 
Wyoming, witnessed a display of colorful lights in the sky. 
They looked liked auroras--but they were not. 





















They're light pillars, caused by ice crystals in the air which intercept urban lights and spread them into colorful columns. Sometimes called "false auroras," no solar activity is required for the phenomenon. The only ingredients are ice and light pollution.

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