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 ...

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. Optical illusions often go viral on social media, but they've been around long before Twitter. From ...

New York — At the Museum of Illusions in New York City, around every corner is a wonder for the eyes. There's a vase that's a face, art that moves with you, and a room that seems to go on forever.

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

Optical illusions are great fun, and they fool virtually everyone. But have you ever wondered if you could train yourself to unsee these illusions? Our latest research suggests that you can. Optical ...

This geometric photo won an "Optical Illusion of the Year" award because of how seamlessly it manipulates depth perception. At first glance, it appears to be a standard set of stairs. However, ...

Optical illusions designed to challenge perception test perspective and depth cues. Obama says aliens are 'real,' but they aren't at Area 51 Who is the suspect in Nancy Guthrie's disappearance? What ...

An optical illusion is a visual phenomenon where the brain misinterprets what the eyes perceive, creating a false or ...

Have you ever looked at two circles of exactly the same size and sworn one was larger? If so, your eyes have been tricked by the Ebbinghaus illusion, a classic example of how context can shape what we ...

A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...