The constancy of the speed of light is a pillar of modern physics, but questions persist about its absolute universality.

For nearly two centuries, physics textbooks have treated light as magnetically indifferent to the materials it passes through, a pure messenger of energy and information that leaves magnetic order ...

The speed of light is constant, or so textbooks say. But some scientists are exploring the possibility that this cosmic speed limit changes, a consequence of the nature of the vacuum of space. The ...

Shini introduces the idea of Quantum Mechanics and how it helps us understand light. What is light? That is something that has plagued scientists for centuries. It behaves light a wave... and a ...

A course offered at the University of Wisconsin has long been connecting seemingly unrelated fields — the sciences and arts — into an interdisciplinary education. Physics 109 — Physics in the Arts — ...

Light can’t seem to keep itself together—at least in two dimensions—according to new findings from the University of Colorado Boulder. This research found that when a dimension is removed from light’s ...

Observations of the formation of light-nuclei from high-energy collisions may help in the hunt for dark matter.

The 2023 Nobel Prize in physics has been awarded to three scientists who created pulses of light so short they can be used to watch the inner workings of atoms. Pierre Agostini, Ferenc Krausz, and ...

Forbes contributors publish independent expert analyses and insights. I write about physics, science, academia, and pop culture. There's an episode of Star Trek: The Next Generation in which John de ...