Excitement is building for skywatchers across the northern U.S. as the aurora borealis could light up the skies as far south ...

Reds, greens, blues, yellows, pinks — every color of the rainbow and in between — forming a luminous curtain amid a backdrop ...

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Forecasts call for mild auroral activity Monday night that will weaken by Tuesday, when no states in the contiguous U.S. are ...