Can darkness really travel faster than light? A surprising new physics experiment suggests it can—at least in a very unusual ...

A dark point inside a beam of light should not be much of a traveler. Yet in a new experiment, some of those points appeared ...

Some of the hardest questions in cosmology begin where the usual math gives up. Push Einstein’s theory far enough back toward ...

110 years ago today, Albert Einstein published his General Theory of Relativity, which redefined the relationship between matter and gravity. Suddenly, our mysterious universe made a little more sense ...