Optical illusions have been around since ancient times. Scientists and artists have been creating optical illusions for the longest time. So what are optical illusions? These are visual images that ...

Most optical illusions last for a few fleeting moments when you're staring at the book, screen, or whatever medium the ...

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Finding the hidden number in this zigzag optical illusion in under 21 seconds is a sign of above average vision. Take the test and find out what your eyes are capable of.

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 ...

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.

It's time now for our science news roundup from Short Wave, NPR's science podcast. I am joined by the show's host, Regina Barber, and producer Rachel Carlson. Good to have you both here. RACHEL ...

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THE WINDIEST DESERT — What's your favorite optical illusion? Famous examples include the Ames room, the Ponzo illusion, the Zöllner illusion, the Kanizsa triangle, the Müller-Lyer illusion and the ...