Quantum mechanics and general relativity are fundamentally incompatible for reasons that relate to views of the world that simply cannot be reconciled. In general relativity, space and time are ...

Physicists have recently proposed a test to determine whether or not loop quantum gravity exists. Before understanding the importance of the test (or the test itself), first we need to understand what ...

This article has been updated to correct my confusion of loop corrections to quantum gravity with loop quantum gravity. Dark energy is the mystery du jour in cosmology. It is the name given to ...

PHYSICISTS like everything neat and tidy. They assume that the universe must be governed by a single set of rules and are thus disturbed that, at the moment, they have to rely on two sets. One, called ...

Loop quantum gravity (LQG) is a non-perturbative, background-independent approach to quantising spacetime that seeks to merge the principles of quantum mechanics and general relativity. In this ...

Tiny but ageing neutrinos can be used to test the very foundations of quantum theory at unprecedented cosmological time scales Schrodinger’s skinniest kittens Must the Schrodinger’s Cat be fat enough ...

The image depicts an experiment in which heavy particles(illustrated as the moon), cause an interference pattern (a quantum effect), while also bendingspacetime. The ...

Just one of the things that supercolliders such as CERN’s Large Hadron Collider and Fermilab’s Tevatron might find is evidence for something called “Quantum Gravity Loops”—which we won’t even try to ...

Most lovers of science fiction are quick to tell you that there's a "time-honored" (pun intended) way to build a time machine - somehow get a wormhole and use it as a bridge to travel through time.