The number 508 is hiding in plain sight among the other numbers in the picture. Readers with 4K vision only can spot the number 508 in 8 seconds. Test your observation skills now!

The peripheral drift illusion causes us to perceive motion in a still image. A new study shows that the mechanism of this illusion relies on changes in pupil size.

THIS mind-boggling illusion used to demonstrate what people with colourblindness can see has blown the minds of social media users. All you have to do is stare at the middle of the green, yellow, ...

In this optical illusion picture, a penguin is hiding in plain sight. Do you have the most observant eyes that can spot the ...

Earth crosses through Saturn’s “ring plane,” making the gas giant’s most iconic feature become nearly invisible ...

Find Saturn Rings To Disappear Latest News, Videos & Pictures on Saturn Rings To Disappear and see latest updates, news, information from NDTV.COM. Explore more on Saturn Rings To Disappear.

Fibre optics and optical communications is the use of thin strands of glass for sending information encoded into light over long distances. Total internal reflection prevents light inserted into ...

Your time’s up! Spotted the pigs without hats yet? Or are you in need of some hints? For hints, all we can say is maybe try taking another good look! For this one, we can hardly give you any hint, or ...

Optical illusions trick our visual system into seeing things that aren’t actually there or misinterpreting what we observe. Many optical illusion images are designed by blending objects, colours, etc.

Only those with a sharp eye and a strong focus can spot it within seconds. This optical illusion is a classic example of a visual puzzle that exploits the brain’s tendency to seek patterns. Our eyes ...

Optical illusions have been fascinating to us, testing our eyes and observing ability. Optical illusions are these brain-twisting riddles that fool our minds and lead us to believe otherwise of ...