Optical illusion: You have strong eyesight if you can find 94 among 49s in just 7 seconds ...

Although skulls are often linked to death, the paranormal, or dark imagery, you need not worry if you saw it first in the image; when it comes to your personality, the symbolism is entirely positive.

A mind-bending optical illusion is challenging internet users to find a hidden number 9 within a grid of similar symbols. This visual puzzle tests perception, attention to detail, and brain agility.

An optical illusion has been circulating online that claims to be able to tell you something about your personality based on what you see in the image - so what did you spot first?

Optical illusion: Only 1% of people can spot the 3 differences in less than 10 seconds TOI Lifestyle Desk / etimes.in / Updated: Apr 26, 2025, 07:53 IST ...

From spinning wheels to impossible shapes, the internet has always had a soft spot for optical illusions. They’re not only fun but also a great way to engage the brain and even share a laugh ...

Mind This optical illusion expands as you stare at it - and now we know why Using a computer model of the retina, researchers have been able to trace the cause of the expanding hole illusion ...

This isn’t the first time a planet has turned out to be an illusion; in 2014, two planets orbiting a star 20 light years away — Gliese 581d and Gliese 581g — turned out not to exist, either.

New research shows that a planet spotted around the real-life star 40 Eridani A, famous for hosting Dr. Spock's fictional home world in 'Star Trek', may have been an optical illusion all along.

Just like the fictional planet of Vulcan was wiped out in Star Trek, new research has destroyed the real-life version of Spock's homeworld, albeit in a less violent fashion.

Now, for the first time, scientists have demonstrated that the illusion works on mice, and this allowed them to peer into the rodents' brains to see what's going on. 35 optical illusions ...