IN BRIEF Satellite Planck launched in 2009 by the European Space Agency. Objective: to map the anisotropies of the cosmic radiation. Discovery of a supercluster of galaxies through its imprint on the cosmic background radiation. Analysis of the cosmic microwave background, light emitted 380,000 years after the Big Bang. Onboard instruments: Low Frequency Instrument (LFI) … Read more
IN BRIEF Cosmic time: central concept in cosmology to model the universe. History of objects: each element of the universe has its own temporal journey. Cosmological models: assume uniformity and isotropy of the universe. Coordination of events: necessary interaction between time and space to structure the universe. General relativity: revolutionized the perception of time in … Read more
IN BRIEF Dark energy: makes up about 68% of the Universe. Accelerates the expansion of the Universe due to its repulsive nature. Dark matter and dark energy: two great mysteries of astrophysics. Recent progress shows that the expansion of the Universe is faster than expected. Use of telescopes like Hubble and Euclid to study these … Read more
IN BRIEF Dark matter makes up about 85% of the mass of the Universe. It is invisible and undetectable, making its study complex. Represents one of the biggest mysteries of modern cosmology. Its existence is necessary to explain the movement of galaxies. Theories like modified gravity attempt to unravel this mystery. Less than 5% of … Read more
IN BRIEF Expansion of the Universe: phenomenon of galaxies moving away from each other. Observation by Edwin Hubble in 1929 on distance and redshift. Dynamic spaces: influence of gravity on space-time. Speed of expansion and its impact on cosmology. Origin of the Universe: about 13.8 billion years ago. Big Bang Theory and its implications for … Read more
IN BRIEF Big Bang: Cosmological model on the origin of the Universe. Describes the evolution of the Universe from a dense and homogeneous state. Observational evidence, such as the cosmic microwave background. Explained by the abundance of primordial helium. Diverse data sources corroborate the theory. Scientific consensus on the birth of the Universe from the … Read more
IN BRIEF Cosmological Model: Mathematical description of the history of the Universe. Friedmann Equations: Foundation of modern cosmological models. Cosmology: Study of the structures and evolution of the Universe. Quantum Physics: Basis of particle and matter theories. Hubble Constant: Measurement of the expansion of the Universe. Differential and Integral Calculus: Key mathematical tools in celestial … Read more
IN BRIEF Neutrinos are nearly massless subatomic particles. They have no electric charge, making their identification complex. They act as messengers of cosmic phenomena. Neutrinos come from energetic events such as supernovae. They allow for a better understanding of astrophysical phenomena. These particles are more abundant than dark matter. Neutrino astronomy offers a complementary perspective … Read more
IN BRIEF Machine learning for cosmological analysis. Correction of detection biases of weak lenses. Use of algorithms for astrophysical parameter estimation. Introduction to ensemble methods. Estimations of biases related to galaxy properties. Applications of AI in the quest for the infinite. Use of optimal transport algorithms in cosmology. Machine learning in astronomy and biomedicine. In … Read more
IN SHORT Quantum physics and cosmology emerged in the early 20th century. Quantum cosmology describes the early moments of the Universe. The concept of quantum multiverse suggests an infinity of universes. Quantum gravity raises many questions about the nature of the Universe. Big Bang and particle physics: essential links. Projects on loop quantum cosmology are … Read more