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

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

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

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

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

Time travel is still very much science fiction, at least to us laymens.. But in the world of physics that’s not the case.

This episode of the Physics World Weekly podcast features Alex May, whose research explores the intersection of quantum ...

Quantum mechanics and relativity are the two pillars of modern physics. However, for over a century, their treatment of space ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

A new study enhances hydrogen molecule predictions, achieving unprecedented precision in testing fundamental physics and ...

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 ...

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 ...