A viral video showing a so-called 'fleet of UFOs' over Japan has triggered a wave of online speculation, prompting experts ...

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

For centuries, mysterious lights have been reported on the moon, captivating astronomers and the public alike. These ...

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

Confining and rotating extremely cold atoms or molecules within atomic “Ferris wheels” made from laser light could test ...

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

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

MIT researchers unlock a hidden effect to stabilize optical clocks, which may help advance the search for elusive phenomena ...

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

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

Whether it is salt flats in Bolivia or rock formations in Arizona, nature never ceases to amaze.

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 ...