Einstein’s strangest optical illusion has been captured—thanks to lasers, a cube, and a bit of artistic inspiration.

An optical illusion challenge is circulating online, testing observation, intelligence, and detective skills. The busy road ...

Fast-moving objects don’t always look the way you’d expect. When something travels near the speed of light, strange things ...

When an object moves extremely fast—close to the speed of light—certain basic assumptions that we take for granted no longer ...