Light Levels Northern States Conservation Center

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Light pollution hides Milky Way from 80% of North Americans

Light pollution - Wikipedia

Aurora Dashboard (Experimental) NOAA / NWS Space Weather Prediction Center

National Weather Service Advanced Hydrologic Prediction Service

Northern Night Monkey, Aotus trivirgatus

The 9 Best Places to See the Northern Lights

This Map Shows Where Biodiversity Is Most at Risk in America - The New York Times

These states could see the northern lights on Thursday

Urban light pollution linked to smaller eyes in birds, WSU Insider

Scientists Have Proved What Causes The Northern Lights : NPR

Best Places to See the Northern Lights Around the World

Aurora Dashboard (Experimental)

You Might See the Northern Lights in the United States Tonight - AFAR

The 9 Best Places to See the Northern Lights