At first glance, this beautiful blue-toned illustration looks like nothing more than a decorative window opening into a surreal cosmic background. But take a closer look: which way is the window ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.

Featuring a blurry image of abstract yellows, oranges, purples and blues, this optical illusion appears pretty plain. It's ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Do you have an eye for illusions? If you can spot the animal lurking among the monochromatic chevron pattern in this mind-boggling puzzle, you’ll be among an elite group of keen-eyed viewers. Those ...

When Dimitris Papailiopoulos first asked ChatGPT to interpret colors in images, he was thinking about “the dress”—the notoriously confusing optical-illusion photograph that took the Internet by storm ...

A study of mice starts to unravel how the brain gets tricked by this kind of optical illusion, and it gives clues about how visual perception works. When you purchase through links on our site, we may ...

Martin Doherty received funding from the British Academy/Leverhulme Trust who partially supported this work. He continues to receive funding from the Leverhulme Trust. Radoslaw Wincza does not work ...