The artist can also use visual illusions of space to encourage this inventive leap. A frame, for example, gives the picture an illusion of infinite space behind the picture frame, as if the frame ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead suggesting giant voids in space are creating an illusion. When you ...

The hidden animal puzzle. The image posted presents a fascinating optical illusion designed to test your vision. The scene appears to be a simple black-and-white illustration, fea ...