As the solar activity that causes the aurora borealis is expected to reach the peak of its 11-year cycle in the next year, opportunities to see it are booming via cruises, train trips and tours.

"You'd see this dynamic green aurora, you'd see some of the red aurora in the background and, all of a sudden, you'd see this structured—almost like a patch—grey-toned or white toned-emission ...

Her team's paper concludes it's "most certainly a heat source" and says it suggests that the aurora borealis are more complex than previously thought. Spanswick says the discovery was made ...

Remember when the aurora borealis danced over places as unexpected as New York City in October — an almost unheard-of treat for urban dwellers? There could be more of that coming since we're only ...