MISSOULA, Mont. — The sky can produce a plethora of unique and awe-inspiring sights. One phenomenon well worth keeping a watch for often occurs when the sun is low on the horizon. Many viewers have ...
The UV index measures the strength of the sun's ultraviolet (UV) radiation. The index ranges from 0 to 11, with higher numbers indicating greater risk of sunburn and skin damage. Protective measures, ...
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