Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

A single atom as a movable slit: Researchers realize Einstein's thought experiment in original form, observing ...

For more than a century, the double-slit experiment has been the sharpest test of what reality is made of, and of whether ...

Researchers have finally resolved a century-old debate over the famous "double slit" experiment, according to new research.

Physicists in China have brought one of Einstein’s thought experiments into reality—but not quite with the outcome he hoped ...

Scientists in China have performed an experiment first proposed by Albert Einstein almost a century ago when he sought to ...

A photon was apparently detected in two places at once in a twist on the classic double-slit experiment, but many physicists ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of ...

Perhaps one of the most famous experiments in physics has been giving us the wrong message all these years. For nearly two ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of ...

A new theory of "dark photons" attempted to explain a centuries-old experiment in a new way this year, in an effort to change ...

The end of "Sunday Night Football" was shrouded in controversy, as a penalty allowed the Philadelphia Eagles to walk off with a 16-9 victory over Jared Goff and the Detroit Lions. Down seven points ...