Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

Physicists have long treated space and time as the stage on which quantum particles perform, not as actors in the drama ...

In an effort to bring together the domains of gravity and quantum theory, Albert Einstein and Nathan Rosen proposed a ...

Scientists have confirmed, for the first time, that the very fabric of spacetime takes a "final plunge" at the edge of a black hole. The observation of this plunging region around black holes was made ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

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

The geometry of spacetime forms the very foundation of modern gravitational theory, where the elegant interplay between curvature and matter is described by Einstein’s field equations. In this ...

Lorentzian geometry forms the mathematical cornerstone of modern spacetime theory by providing a framework in which the causal structure and metric properties of the universe can be rigorously ...

I've been trying to explain quantum physics, forces, relativity, and space-time to my kid and we had a question that I'm finding difficult to find a solid answer to. Background you can skip if you ...