These particles excite gases like oxygen and nitrogen, releasing energy in the form of colorful light. The result is a mesmerizing display of greens, reds, purples and blues that ripple across the ...

For the aurora to be visible here, we generally need a k-index value of at least a 7, with an 8 or a 9 more favorable for more widespread and colorful Northern Lights displays. In order to view ...

However, every geomagnetic storm has the chance to push the northern lights to much lower latitudes than normal, potentially making the colorful skylights visible to millions of skywatchers in ...