An curved arrow pointing right. Watch this animation for 15 seconds, then watch a still picture of the Antennae Galaxies taken by the Hubble Space Telescope, and it'll look like it's moving.

An curved arrow pointing right. A popular illusion online has people scratching their heads. The trick involves taking one giant chocolate bar, cutting it into pieces, and shifting them around ...

Using a computer model of the retina, researchers have been able to trace the cause of the expanding hole illusion ...

An optical illusion personality test is a fascinating ... individual who isn't afraid to show your true self. Like an arrow hitting its mark, you have a remarkable ability to cut through the ...