Northern Lights in region explained by ETSU astronomist

JOHNSON CITY, Tenn. (WJHL) - Bright and colorful Northern Lights have been sighted across the United States, with an 8.7 on a logarithmic geomagnetic storm scale reported Tuesday night. The bright pink, purple, and green aurora borealis colors seen with the naked eye are attributed to a rare, active sun stage underway Wednesday night. The [...]