The National Oceanic and Atmospheric Administration and NASA say solar activity has been steadily increasing and will peak in ...

It has been a stunning few weeks of events in the sky. Before a rare "blood moon" lunar eclipse amazed Americans on Thursday, the aurora borealis glowed bright green last weekend, dazzling viewers ...

There's no other experience on Earth quite like witnessing the northern lights. Also known as the aurora borealis, this spellbinding phenomenon – when brilliant hues of green, yellow, red and ...