When we look around us, we see a three-dimensional world: objects are made up of the three usual spatial dimensions. Although we all know...

We are currently witnessing a fascinating competition between theory and experiment regarding dark energy: general relativity and...

Over the years, the articles on this website have become increasingly in-depth and complex, so that understanding many of them...

One of the most amazing things in this world is that human beings (a species of large-brained hominids) are capable of studying phenomena...

Schwarzschild geometry was the first exact solution to Einstein's equations of general relativity. As is well known, this solution...

The theory of general relativity forever changed our way of viewing the Universe around us: space and time are part of a dynamic,...

In 2010, just before the first collisions at the LHC, the experimental expectations of the particle physics community were impressive....

The title of this post is seemingly puzzling: How can we even attempt to describe what happens inside a black hole? Although it may seem...

"The macroscopic geometry of relativity has many special features. Features that suggest a hidden complex-manifold origin and certain...

Human beings are capable of achieving things that at first seem completely beyond their reach. While extraordinary people like Magellan...

Physical reality is that which can be detected with any measuring device that can be physically constructed. However, in the...

The great Albert Einstein imagined himself "riding on the back of a ray of light." Einstein realized that traveling at the speed of...

"It's not that the Universe is stranger than we imagine, it's that it's stranger than we can imagine." Werner Heisenberg Probably the...

Our standard cosmological model includes a very brief period of exponential expansion called cosmic inflation, which ended with the Big...

Until very recently it was thought that detecting low-energy phenomena derived from The quantum nature of space-time was impossible to...

On November 30, 2022, a group of physicists led by Maria Spiropulu published a surprising study in the journal Nature that caused a great...

In 1997, physicist John Preskill bet the great Stephen Hawking and the renowned physicist Kip Thorn that information was not destroyed in...

In 2019, the EHT (Event Horizon Telescopy) experiment showed the world the first "image" of a black hole. Physicists knew that the image...

The so-called "Planck scale" marks a fundamental limit beyond which the physical world as we know it ceases to make sense. In fact, it is...

The physics of the Universe, at a fundamental scale, is so different from our macroscopic world that it seems like science fiction. In...