In Einstein's theory of general relativity, gravity is always attractive. But according to a new paper, quantum mechanics offers a looph...

Physicists have been trying to reconcile the differences between Einstein’s theory of spacetime and our observations of quantum mechanics ...

What is space, really? That’s one of the biggest questions in science. According to a pair of researchers from the Perimeter Institute, the ...

We know that Einstein’s general relativity is, strictly speaking, wrong. That’s because it doesn’t account for quantum effects despite the f...

The #1 most-wanted particle in physics is the graviton, a quantum of gravity. If physicists were to prove that gravitons exist, they would ...

Roger Penrose is a very well-known mathematician, physicist, and author who won the Nobel Prize a few years back. He’s repeatedly questioned...

Over the past few decades, the idea that gravity is not a fundamental interaction but is instead caused by the increase of entropy has becom...

To us normal people, cause and effect are linked together in a distinct order. The cause occurs first, and the effect follows after. But acc...

Physicists are stuck on trying to figure out why gravity and quantum mechanics don’t get along. For almost 100 years now, they have been loo...

Last year, Jonathan Oppenheim’s theory of post-quantum gravity was the only theory that made it into my Best of 2024 summary. Post-quantum g...

Heard anything of string theory lately? Well, there have been a few developments. Apparently it’s not dead, going by a recent review article...

Mathematician Stephen Wolfram has attempted to develop a theory of everything using hypergraphs, which are essentially sets of graphs that c...

I was recently alerted to a video by my friend and colleague Brian Keating that claims Loop Quantum Gravity (LQG), string theory’s biggest c...

I suspect that one of Einstein’s nightmares was that his theory of gravity would be turned into a quantum theory. I also suspect that we’re ...

Physicists will soon begin an experiment at the South Pole to test if space has quantum fluctuations. Their new approach looks for decoheren...

For the first time in 4 decades, physicists have found a new approach to solving a problem which is almost a century old: How to combine qua...

Physicists at the University of Warwick in the UK are starting to build an experiment that could just save physics. They could be the first ...

Every scientific discipline has its holy grail, and the holy grail of physics is definitely quantum gravity. Quantum gravity is Einstein’s u...

[This is a transcript of the video embedded below. Some of the explanations may not make sense without the animations in the video.] Ei...

[This is a transcript of the video embedded below.] Do we live in a hologram? String theorists think we do. But what does that mean? ...