07/13/2026
Fireworks aren't allowed in Great Basin National Park, even on the Fourth of July, but the aurora borealis (nature's fireworks) clearly didn't get the memo...
A strong (G3) geomagnetic storm hit Earth on the eve of America's 250th birthday, bringing the northern lights far south enough to delight attendees of Great Basin's astronomy program. Because our night skies are so dark, the lights were easily visible to the naked eye, originally as green before changing to pink. Before the advent of widespread light pollution in the late19th century, this is the kind of view that Americans all over the country would have enjoyed -- no need to travel to Alaska or Iceland!
Fortunately, light pollution is one of the easiest forms of pollution to clear up - it just requires turning off the lights! Using warm colors (like the red lights in Great Basin's astronomy program areas), turning off lights whenever they aren't in use, and directing lights downward are all easy ways to improve the quality of your night skies. If we all do our part, then the next time universe's prettiest fireworks show decides to come our way, it might just be visible from your back yard.
Photo Credit: NPS/C. Murray