You’ve probably seen every color in the rainbow—until now. Scientists say they’ve unlocked a hue the human eye was never ...

Five scientists at the University of Berkely used laser technology to selectively activate cells in their retinas, to push the vision beyond its natural limits.

The specifics of the claim are contested, but the ability to precisely stimulate the retina with lasers is cool whether or ...

By stimulating thousands of individual cone cells, researchers made volunteers see a blue-green color of "unprecedented ...

Using an experimental technique called "Oz," researchers stimulated the human retina such that people saw a brand-new color.