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 ...

Since Einstein, physicists have found that certain entities can reach superluminal (that means "faster-than-light") speeds and still follow the cosmic rules laid down by special relativity.

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 ...

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

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

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

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 ...