From shifting colours to phantom rays, these five challenges reveal how easily your mind can be fooled by light, contrast, ...

Test your observation skills with this challenging optical illusion! Spot the hidden objects in a black-and-white image using your eagle vision and sharp IQ. Can you solve it in 7 seconds?

Can you identify the hidden fish in this picture? In this black and white sketch, we see a leopard comfortably perched upon a tree enjoying his afternoon siesta.

An optical illusion shared on Facebook challenged users to count dots in a tricky image.

The device, reported in Advanced Photonics, functions as an optical black hole or optical white hole, and rests on a principle known as "coherent perfect absorption" of light waves.

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual ...

If your appetite for photography is solely sustained on the corn flakes of social media, then you’re probably not going to ...

London-based illusion attraction Twist Museum has shared an optical illusion set to baffle readers, as it tricks the mind into seeing the same black and white photo in colour.

A wall installation presents Rosa Menkman’s strange web-based work The BLOB of Im/Possible Images (2021). She invited physicists and others to posit an image that cannot actually exist, which she then ...

The activities may include riddles, optical illusions, pictorial brain teasers, mathematical equations, and more. But fear not—we have an adorable yet challenging optical illusion activity for you.

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.