Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Fairy circles were ...

The human eye is drawn to circular patterns in nature, from crop circles in the movie Signs to the ripples in a pond. But there's another awe-inspiring, naturally-occurring, circular pattern that ...

Perfect circles of stones cover the ground in parts of Alaska and the Norwegian islands of Spitsbergen. Elsewhere in the far north, stones form other striking patterns on the ground: polygons, stripes ...

Crop circles have fascinated and perplexed people for decades, sparking debates and theories ranging from natural phenomena to extraterrestrial artistry. As new evidence and theories emerge, the ...

The artists behind increasingly elaborate crop-circle patterns are most likely skilled in math, necessary to plot epic designs, and technologically savvy enough to employ tools like microwave ...