Only a handful of people have been able to solve the mystery behind this floating cube. Find out whether you are among them.

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 ...

A grayscale ballerina who appears to be moving. A human who can fit in a doll box. A black-and-white prism that appears to change shape when viewed from three different directions. Those are the top ...

Look closely. The image will make your brain do somersaults. This is not an easy one to solve. The snake is camouflaged to ...

A galaxy billions of light-years across space-time has puzzled scientists since its discovery more than 50 years ago.