Northern lights could appear in US again, but too soon to tell - USA TODAY

* Northern lights could appear in US again, but too soon to tell  USA TODAY
* Auroras could appear over the next week as solar activity increases  CNN
* Northern lights in US weren't visible like last time. Here's why.  USA TODAY
* Northern lights might be visible in southern Idaho in June  Idaho Statesman
* Are auroras coming back?  NPR


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