Science and philosophy explain why a color is objectively real, even when people see the same shade differently.

Optical rotatum” is the term researchers coined to describe a newly discovered structure of light. Beams of light that can be shaped into corkscrew-like forms, known as optical vortices, are used ...

Researchers at Rice University have developed a sophisticated 3D photonic-crystal cavity that can trap and control light in ...

Chemists have confirmed a 67-year-old theory about vitamin B1 by stabilizing a reactive molecule in water—a feat long thought ...

The lab experiments expanded the perception of the eyes and enabled them to see hues that could not be recreated in reality ...

In the realm of general relativity, black holes are well-known for their ability to trap light and matter by bending ...