For over 100 years, two theories have shaped our understanding of the universe: quantum mechanics and Einstein’s general ...

A physicist proposes that time has three dimensions instead of one, which could finally unite quantum mechanics and Einstein's relativity into a single theory.

A festinating new theory shifts focus from space to time, arguing the clock-ticking we take for granted is richer and weirder ...

Ever wondered what gravity really is? Is it a force, or is there more to it than we know? In this video, we break down the theory of general relativity, revealing how mass and energy bend the fabric ...

Claudia de Rham has rather an unusual relationship with gravity. While she has spent her career exploring its fundamental nature, much of her free time has involved trying to defy it - from scuba ...

Physical equations enable us to predict the future, but singularities imply a lack of predictability; theory just breaks down ...

There are new hints that the fabric of space-time may be made of "memory cells" that record the whole history of the universe ...

A senior researcher from a groundbreaking international science and engineering collaboration returned to visit his old ...

Time travel may be a staple of science fiction, but physics tells a more complicated story, one that’s still unfolding.

Without a proper background in General Relativity (GR) and associated subjects (tensor calculus, etc.) ... In this book we give a detailed exposition of the relativistic theory of gravitation or RTG, ...

Quirks & Quarks features our ever-popular listener question show, where we find experts to answer your questions. But here ...

Quantum gravity research aims to merge general relativity and quantum mechanics, potentially reshaping our understanding of ...