As St. Patrick’s Day approaches, images of leprechauns, shamrocks, and, of course, rainbows leading to pots of gold flood our imaginations. But while the legend of treasure waiting at the end of ...

Lauren Wood described the sight on the Crib Goch ridge as a "spiritual experience".

Optical illusions are tricky pictures that play with your mind and test how well you can see details. They help scientists understand how our brain processes visual information. These puzzles also ...