When a laser experiment fails to produce the expected flash of light, most researchers would assume something went wrong with ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

Light has always been the stage on which quantum mechanics performs its strangest tricks, and the double-slit experiment is ...

A new experiment has demonstrated something that sounds physically impossible – light itself casting a shadow. It turns out that if you manipulate a laser just right, then hit it side-on with another ...

The results add to physicists’ understanding of neutrinos and validate collaboration between major experiments. The NOνA far detector. Credit: Public domain image from Fermilab. More details here.

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 ...