Cosmology definition

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Cosmology Definition and Key Concepts

Cosmology is the scientific study of the universe as a whole, focusing on its structure, origin, evolution, and eventual fate. It combines philosophy and astronomy to understand the cosmos, using both theoretical models and observational data to answer fundamental questions about the universe's nature and history Cherepanov2019Dullemond2007Wallisch2019.

Structure and Evolution of the Universe

Modern cosmology is a quantitative field that examines the large-scale structure and evolution of the universe. It uses data from observations, such as the cosmic microwave background and the distribution of galaxies, to build and test models that describe how the universe has changed over time. These models help explain key events like the Big Bang, the expansion of the universe, and the formation of cosmic structures Cherepanov2019Wallisch2019.

Theoretical Foundations in Cosmology

Cosmology relies heavily on theories of gravitation, especially Einstein’s general relativity, which provides a framework for understanding the space-time structure of the universe based on the distribution of matter. By applying these theories, cosmologists can deduce the average properties and behavior of the universe, including its expansion and the influence of dark energy and dark matter Dullemond2007Chruściel2019.

Observational and Empirical Science

Advances in observational techniques have transformed cosmology into an empirical science. Researchers now use precise measurements from telescopes and satellites to test cosmological theories and refine our understanding of the universe. However, since the universe is unique and cannot be experimented on in the traditional sense, cosmologists must carefully interpret data and consider the limitations of current theories .

Interdisciplinary Perspectives

Cosmology is not only a natural science but also intersects with philosophy and social sciences. How we study and interpret the cosmos is influenced by our beliefs and perspectives, making it important to consider both scientific and philosophical approaches when exploring cosmological questions Cherepanov2019Kurki2020.

Conclusion

In summary, cosmology is the study of the universe’s structure, origin, evolution, and fate, using both theoretical models and observational data. It is a dynamic and interdisciplinary field that seeks to answer some of the most profound questions about the cosmos and our place within it Cherepanov2019Dullemond2007Wallisch2019+3 MORE.

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Most relevant research papers on this topic

Cosmology

This chapter presents a new cosmology model based on energy conservation and repulsion, explains Dark Energy, and provides a close estimate of the universe's age using data from WMAP and Planck missions.

2019·

0citations

·G. P. Cherepanov

Invariant Integrals in Physics·

DOI

Introduction to Cosmology

Cosmology is the study of the dynamical structure of the universe, aiming to answer questions about its origin, evolution, and future behavior.

2007·

0citations

·C. Dullemond

DOI

Review of Modern Cosmology

Modern cosmology revolutionizes our understanding of the cosmos through data-driven theory and observations, including the cosmic microwave background, large-scale structure, and baryon acoustic oscillations.

2019·

2citations

·B. Wallisch

Cosmological Probes of Light Relics·

DOI

Cosmology as a science

Cosmology has become an empirical science, but there are grounds for doubting the validity of accepted laws of nature on a cosmological scale due to potential variations in nature's constants, the breakdown of relativity, and the presence of field singularities.

1970·

22citations

·P. Bergmann

Foundations of Physics·

DOI

Cosmology

Social and natural science approaches to cosmology should be considered together to avoid uncritical scientific cosmology and avoid equating the cosmos to our beliefs about it.

2020·

0citations

·M. Kurki

International Relations in a Relational Universe·

DOI

Cosmology

Cosmology aims to understand the physical principles governing large-scale phenomena, using different methods from other branches of physics, while maintaining the ultimate scientific criterion for a theory, making verifiable predictions.

2019·

0citations

·P. T. Chruściel

Compact Textbooks in Mathematics·

DOI

Philosophy of Cosmology

Cosmology has made progress, but still faces foundational debates and challenges, offering philosophers of science an opportunity to contribute to debates and consider the implications of new ideas for other areas of philosophy and physics.

2013·

23citations

·Chris Smeenk et al.

DOI

A Candid Assessment of Standard Cosmology

The standard model of cosmology needs a complete overhaul due to significant conflicts with observations and fundamental principles in quantum mechanics, general relativity, and particle physics.

2022·

19citations

·F. Melia

Publications of the Astronomical Society of the Pacific·

DOI

Cosmology

The Hot Big Bang model suggests the universe emerged from an extremely hot, dense phase about 14 billion years ago, with the earliest time for meaningful speculation being about (10-43) s after the Big Bang.

2020·

0citations

·C. Grupen

essentials·

DOI

Cosmology

The Lemaître-Friedmann-Robertson-Walker universe models are solutions to Einstein's field equations, and the Hubble-Lemaître expansion law is a general property of these models.

2020·

0citations

·Øyvind Grøn

Undergraduate Texts in Physics·

DOI

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