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

Researchers at TU Wien have discovered a quantum system where energy and mass move with perfect efficiency. In an ultracold ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

On fall Fridays at Harmony Grove High School, students show up for their physics class wearing football jerseys and other ...

Zero-point energy sits at a strange crossroads between hard physics and science fiction, promising limitless power from the ...