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

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

AI toys, companions, and robots have been everywhere at CES this year, but among the horde of waddling plushies and light-up ...

Now, two unrelated-but-similar experiments confirm that, in a double-slit experiment, detection of a photon’s path (its ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

Astronomers have directly observed a spinning black hole twisting spacetime, confirming a century-old prediction of ...

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

The scientists realized that these supernovae weren’t as nearby as they had thought, so they had zipped away from Earth quicker than expected. “These observations led scientists to ultimately conclude ...

The Princeton that Albert Einstein knew in 1933 was sharply divided by the color line; a long-established border—marked by ...

Astronomers have finally watched a black hole do something Albert Einstein only described on paper: twist the very fabric of ...

Josh Safdie and Chloé Zhao join forces for Variety's Directors on Directors to discuss their Oscar contenders 'Marty Supreme' ...

Astronomers have seen spacetime itself wobble near a spinning black hole for the first time. The discovery, revealed during a star’s destruction, confirms a major prediction of Einstein’s theory of ...