An experiment has visualized a prediction about objects traveling at the speed of light known as the Terrell-Penrose effect, ...

Addressing a controversy first raised around 1910, two physicists have performed experiments with the aid of an engineer that validate anew the special theory of relativity’s limitations on the speed ...

They recreate how a camera would see objects traveling at 99.9% of the speed of light, revealing surprising relativistic ...

In 1887, one of the most important experiments in the history of physics took place. American scientists Michelson and Morley ...

Physicists tested light speed using cosmic gamma-ray bursts. Study confirms Einstein's prediction that all light colors travel at same speed.

In 1999, a Danish physicist named Lene Hau did the unthinkable. She slowed the speed of light. It was a remarkable move that completely changed our idea of universal constants. Since then, Hau has ...

The fact that the speed of light is constant is one of the cornerstones of physics. Nothing carrying information can travel faster than the speed of light, but by playing with geometries physicists ...

The Italian professor who led an experiment that initially appeared to challenge one of the fundaments of modern physics by showing particles moving faster than the speed of light has resigned after ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. Neutrino detectors, like the one used in the BOREXINO collaboration ...

Light is the fastest-moving thing in the universe. So what would happen if the speed of light were much, much slower? In a vacuum, the speed of light is about 186,000 miles per second (300,000 ...