The Sun might be our closest and best-studied star, and yet it is still full of mysteries. One of them looks to have been ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Alternating groups of planets could be ganging up on the Sun, causing an energy cycle ...

New findings suggest that an extraordinarily powerful and dangerous burst of radiation might flare from our sun in the future. By Katrina Miller Our sun is a violent place. Bursts of radiation snap ...

Out in the depths of space there lurk a range of threats to our very existence. A "War of the Worlds" scenario might be implausible, but can't be discounted. Then there are meteorites. According to ...

Beautiful curtains of pink and green light swirled in night skies around the world in May during one of the strongest displays of auroras in half a millennium. The source of that light show was the ...