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

The answer comes from a counterintuitive result of special relativity, a field of physics which is notoriously difficult to ...

Gravitational physics has become a truly experimental science as tests of the special and general theories of relativity reach new levels of precision Right on time When I was a first-term graduate ...

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

Rogue black holes kicked from their galactic lairs are among the surprising predictions made by physicists using powerful computers to solve Einstein's equations of general relativity. David Appell ...

Since its introduction by Albert Einstein in 1905 (ref. 1), special relativity has been the accepted theory of local space-time. It not only resolved severe open questions in electrodynamics but ...

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

One of the goals of modern physics is to determine the underlying rules that govern our reality. Indeed, one of the wonders of the universe is that just a few rules seem to describe many aspects of ...

Yesterday, I wrote about the core concepts needed to understand quantum physics, which is one of the two pillars of modern physics. The other, of course, is the theory of relativity, the full and ...