Optical illusions like the one at the top of the page may not actually be bright, but our brains — and now it seems our eyes — think they are. This radial sunburst illusion is known as the Asahi ...

Optical illusion personality tests are interesting images that trick the brain and eyes into believing what a person sees at ...

All over the world, there are naturally occurring optical illusions that captivate spectators. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt ...

This optical illusion can reveal if you're someone people love being around, or if you're someone who has trouble trusting others. Mia Yilin/TikTok This optical illusion can reveal if you’re someone ...

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...

Optical illusions often go viral, but they've been around long before social media. Here are 10 historical illusions that still leave people puzzled.

Warning: This “Stranger Things” optical illusion may haunt your dreams. The internet is freaking out over this “Stranger Things”-inspired optical illusion, which hides an image that might be scarier ...

Researchers shot butterflies taking off in super slo-mo and found the patterned wings may actually be an optical illusion to make predators miss ...