Trying to solve quantum gravity is frustrating. We have made tremendous progress in quantum theory, but it seems that every ...

A new study links the universe’s expansion to quantum topology, suggesting that hidden mathematical structures may stabilize ...

The cosmological constant problem, or the vacuum catastrophe is a discrepency in the observed values of the vaccuum energy density and its theoretical predictions. The solution may lie in the very ...

Physicists at Brown University have proposed that the universe’s accelerating expansion may be stabilized by a hidden topological structure in space-time. Their model connects quantum gravity ...

The cosmological constant, originally introduced by Einstein as a measure of vacuum energy density, has re-emerged as a central challenge in understanding the observed accelerated expansion of the ...

At the heart of the Big Bang model of cosmic origins is the observation that the universe is expanding, something astronomers have known for nearly a century. And yet, determining just how fast the ...

We know that the universe is getting bigger. And we know that the speed that the universe is getting bigger is also getting bigger. The standard assumption is that the acceleration rate is itself ...

The great Russian physicist and Nobel laureate Lev Landau once remarked that “cosmologists are often in error, but never in doubt”. In studying the history of the universe itself, there is always a ...

The cosmological constant is presumably an enigmatic form of matter or energy that acts in opposition to gravity and is considered by many physicists to be equivalent to dark energy. Nobody really ...