Researchers have harnessed nonlocal artificial materials to create optical systems that emulate parallel spaces, wormholes, ...

Sun pillars are a beautiful atmospheric phenomenon that can sometimes be seen at sunrise or sunset. Watch this video to learn ...

The surreal view was captured by chance, a passenger told Newsweek, noting "it just worked out perfectly that we flew through ...

Test your HD-eye vision and IQ! Can you find the hidden Military Macaw in this realistic children’s park optical illusion ...

The illusion makes clever use of colour theory, demonstrating how our brains perceive colours differently against certain ...

Test your IQ and vision with this Geometrical Rotating Vortex Motion Optical Illusion. Only 1% can spot the hidden objects ...

From an underwater waterfall in the Indian Ocean to a surrealist scene in Namibia, we rounded up 18 naturally occurring illusions and optical phenomena that will make you double-take. If you can't ...

Optical illusions come in all forms, from the cognitive to the physiological, often boggling our brains beyond our ...

F or centuries, dating back to long before the invention of the telescope, people have reported odd flashes that sometimes ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

Materials scientists can learn a lot about a sample material by shooting lasers at it. With nonlinear optical microscopy—a ...