Northern lights were visible in several parts of the U.S. Tuesday night into Wednesday. So what are auroras, and what caused ...
PRIMETIMER on MSN
What is the aurora borealis phenomenon? Details explored as Northern Lights expected to be seen in 21 states across USA
A powerful solar storm may light up skies across 21 U.S. states with a rare aurora borealis display from November 11 to 12, according to NOAA’s forecast.
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