Cosmological magnetic monopoles

Magnetic monopoles are among the most fascinating enigmas of modern physics, captivating both astrophysicists and particle physics theorists. At the heart of contemporary cosmology, these hypothetical particles dissociate classical magnetic duality by postulating the existence of objects carrying a unique magnetic pole, as opposed to the familiar dipoles of conventional physics. Their discovery would transform … Read more

The CP violation in cosmology

The violation of CP symmetry (charge-parity) remains one of the most fascinating and complex phenomena studied in modern cosmology. Since its discovery in the decays of K mesons in the 1960s, this anomaly challenges the fundamental equality between matter and antimatter in the primordial universe. While classical theories assumed a perfect balance between particles and … Read more

The cosmic matter-antimatter asymmetry

The matter-antimatter asymmetry in the Universe remains a fascinating enigma in cosmology and fundamental physics. While the Standard Model predicts a symmetric creation of matter and antimatter during the Big Bang, our observations show a striking predominance of matter in the current Universe. This imbalance raises profound questions about the nature of physical laws, the … Read more

Supersymmetry and cosmic particles

In the rapidly expanding field of high-energy physics, supersymmetry stands out as a revolutionary approach aimed at surpassing the limits of the standard model. This theory proposes that every fundamental particle, whether a fermion or a boson, has a supersymmetric partner whose spin differs by half a unit. Moreover, recent advancements in the detection of … Read more

The additional dimensions and astronomy

Recent advances in fundamental physics shed light on a fascinating concept that goes beyond the simple perception of the three-dimensional universe: the existence of extra dimensions. These dimensions, invisible to the naked eye and conventional instruments, could radically transform our understanding of space-time and thus revolutionize the field of astronomy. At the heart of the … Read more

The entropy of black holes and information

Since the 1970s, the study of black holes has profoundly transformed the understanding of entropy, a fundamental concept in thermodynamics, by tying it to the most mysterious astrophysical objects in the universe. The revelation that these strange regions of spacetime can possess entropy, measuring the amount of information they contain, has not only opened new … Read more

The physics of hypothetical wormholes

Wormholes remain one of the most fascinating and enigmatic concepts of modern theoretical physics, resonating with both the strings of science and those of science fiction. These hypothetical structures represent shortcuts within the fabric of space-time, proposing the captivating idea that the universe could be traversed almost instantaneously through these cosmic tunnels. Anchored in the … Read more

Primordial gravitational waves

At the frontier of modern cosmology, primordial gravitational waves present themselves as a fundamental enigma for deciphering the history of the universe. These subtle oscillations in the very structure of spacetime are thought to have emerged during the very first moments of the cosmos, shortly after the Big Bang, and carry precious information about the … Read more

General relativity tested in space

Fundamental physics is at a crucial turning point thanks to recent advances in experimental tests conducted in space. General relativity, a revolutionary theory concerning the curvature of space-time and gravity, is today subject to unprecedented validations via satellites and sophisticated space experiments. The deployment of measurement tools such as ultra-precise atomic clocks in orbit and … Read more

Complex interstellar organic molecules

In the almost unfathomable vastness of space, the detection of complex interstellar organic molecules opens a fascinating field of investigations. These carbon compounds, truly the building blocks of life, are far from isolated: they thrive at the heart of cold molecular clouds, engines of stellar formation, and reveal the unsuspected richness of interstellar chemistry. This … Read more