Optical illusions are not merely tricks or viral brain teasers, they reveal the curious disconnect between what we see and what our brain interprets. A flat drawing might come across as ...

Do you think you have perfect vision? Here’s a quick way to find out. This optical illusion is designed to test how sharp ...

If you listened carefully enough towards the end of March you could hear the sound of accountants laughing in the distance. The laughter was triggered by self-employed people like me declaring that ...

There is a new optical illusion floating around that has got people staring at their screens. It looks like a normal photo of a thick green forest. But somewhere in the middle of that leafy mess, ...

Optical illusion challenges like this one are designed to test focus, speed, and attention to detail. They look simple at ...

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 ...

Jack Knudson is an Associate Editor for Discover Magazine who writes articles on space, ancient humans, animals, and sustainability, and manages the Planet Earth column for print. View Full Profile.

Optical illusions are all the rage these days, and this visual puzzle is sure to leave you hooked. This optical illusion has been tricking the internet into seeing a man with two dogs until they ...

Optical illusion: At first glance, the image appears to be of a caterpillar, but look closer. This clever puzzle challenges your eyes and mind. Optical illusions or visual puzzles are challenging yet ...

A fresh optical illusion has taken over social media, and this time, it is giving people a real run for their money. At first glance, the viral image looks like a simple wall full of the word “moon" ...