Nearly a dozen states in the northern U.S. could have an opportunity to view the northern lights on Friday, though more areas might be able to observe the phenomenon as solar activity may intensify, ...

NOAA forecasts a G2 geomagnetic storm for July 2-3 as a CME arrives, with aurora most likely on the northern horizon in U.S. states close to the Canada border.

Add Yahoo as a preferred source to see more of our stories on Google. Lovers of the night sky and northern lights will want to look upward over the next few evenings. The National Oceanic and ...