New study proposes using atomic clocks to probe the intersection of quantum mechanics and general relativity in spacetime.

Scientists propose “DNA of the universe” is gap in Einstein’s hunt for unified physics theory Physicists say they detected a double helix in the fabric of spacetime ...

String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single ...

Special relativity is one of the most – if not the most – well-tested theories in all of physics. That’s because special relativity isn’t just a theory, it’s a meta-theory.

He shared the Nobel Prize in Physics for his work on gravitational waves, which helped confirm Einstein’s general theory of ...

You can listen to Great Mysteries of Physics via any of the apps listed above, our RSS feed, or find out how else to listen here. You can also read a transcript of the episode here.

Einstein's theory of general relativity is our best description of the universe at large scales, but a new observation that reports a "glitch" in gravity around ancient structures could force a ...

New impressions A visualization of a curved space–time “sea” from the general-relativity simulations carried out by the authors. (Courtesy: James Mertens) From the Genesis story in the Old Testament ...

The surprises in the history of physics are far too many to comprehensively describe, but we polled a variety of physicists for some of their favorites. A few discoveries, such as the accelerating ...

But to your question, there is no accepted theory that reconciles quantum mechanics and relativity. There are a few well thought out theories, and probably lots of other not as well thought out ...