"The singularity is the most mysterious and problematic part of a black hole. It's where our concepts of space and time ...

If gravity arises from entropy, scientists could unite Einstein's general relativity with the quantum realm while shedding ...

Black hole singularities should not exist, according to theories of quantum mechanics. New tweaks to Einstein's equations of general relativity could finally do away with them, and explain what truly ...

Einstein's theory of general relativity suggests that the "memory" of ancient events, such as black hole mergers, may be ...

Since the beginning of the 20th century, Einstein's theory of general relativity has been the best description we have of how gravity works. However, right around when Einstein came up with ...

We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole ...

A new recipe for gravity could help solve some of the universe's greatest mysteries. It suggests that the concept of "quantum ...

Gravity, Einstein said, defined the structure of space and time itself. But in the past century, we have learned far more about the cosmos than even Einstein could have imagined.

In turn, that bending of spacetime tells matter how to move. Einstein was able to use this mathematical language to describe gravity, which was a huge success in its own right, but it wasn’t ...

The study, titled "Gravity from Entropy," introduces a novel ... quantum mechanics and Einstein's general relativity. For decades, physicists have struggled to reconcile the principles of quantum ...

Gravity's tug and upward acceleration in zero gravity both pull you to the floor. The physics of both events is the same, Einstein decided, based on the "principle of equivalence." Similarly ...