The theorized unseen structure of spacetime could also explain of the outstanding questions about the accelerating expansion ...

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

Physicists have spent decades treating mass as something the universe simply hands to particles, a property encoded in ...

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

Bootstrapping strings Evidence that string theory could be the sole viable “theory of everything” has emerged in a new theoretical study of particle scattering. (Courtesy: iStock/Anadmist) Striking ...

Over the short span of just 300 years, since the invention of modern physics, we have gained a deeper understanding of how our universe works on both small and large scales. Yet, physics is still very ...

"The singularity is the most mysterious and problematic part of a black hole. It's where our concepts of space and time literally no longer make sense." When you purchase through links on our site, we ...

Why can't you take a lot of physics terms literally? Shouldn't “the Theory of Everything” be called “the theory of some things but not everything”? originally appeared on Quora: the place to gain and ...

Adapted excerpt from Lost in Math: How Beauty Leads Physics Astray, by Sabine Hossenfelder. Copyright © 2018. Available from Basic Books, an imprint of Perseus Books ...

Can a theory that isn’t completely testable still be useful to physics? What determines if an idea is legitimately scientific or not? This question has been debated by philosophers and historians of ...