Cosmology is the scientific study of the large-scale properties of the universe as a whole. It aims to understand the origin, evolution, structure, and eventual fate of the universe. By examining cosmic phenomena such as the Big Bang, cosmic microwave background radiation, dark matter, and dark energy, cosmologists develop theories and models that explain how … Read more
The quest for a Theory of Everything (TOE) is one of the most ambitious scientific endeavors, aiming to unify all fundamental forces and particles in a single, all-encompassing theoretical framework. This grand vision seeks to bridge the gap between the two main pillars of modern physics: General Relativity, which describes the macroscopic world of gravity … Read more
The origin and evolution of the universe have fascinated humanity for millennia. Modern scientific theories, such as the Big Bang theory, provide a framework for understanding these cosmic processes. The universe began as an unimaginably dense and hot singularity around 13.8 billion years ago, expanding rapidly and cooling over time. Through cosmic inflation, galaxies, stars, … Read more
Galactic clusters, vast collections of galaxies bound together by gravity, are among the most intriguing and dynamic structures in the universe. These clusters contain thousands of galaxies, as well as vast amounts of dark matter, hot gas, and other cosmic phenomena. Probing the depths of galactic clusters offers valuable insights into the formation and evolution … Read more
Stars are born and die in a continuous cycle, playing a fundamental role in the structure, dynamics, and evolution of the universe. The processes of star formation and stellar death are intricate and fascinating, involving a complex interplay of physical phenomena that span millions to billions of years. Understanding the birth and death of stars … Read more
Astronomers can use supercomputers to simulate the formation of galaxies from the Big Bang 13.8 billion years ago to the present day. But there are a number of sources of error. An international research team, led by researchers in Lund, has spent a hundred million computer hours over eight years trying to correct these. The … Read more
We now have a standard model of cosmology, the current version of the Big Bang theory. Although it has proved very successful, its consequences are staggering. We know only 5% of the content of the universe, which is normal matter. The remaining 95% is made up of two exotic entities that have never been produced … Read more