Quote: "Cosmology is a branch of physics and metaphysics dealing with the nature of the universe."
The study of the origins and evolution of the universe, including the Big Bang theory, dark matter, and dark energy.
Big Bang Theory: It is the prevailing cosmological model that explains the origin of the universe.
Dark Matter: It is a form of matter that is hypothesized to exist, which does not interact with light and is not visible through telescopes.
Dark Energy: It is a hypothetical form of energy that is believed to be responsible for the acceleration of the expansion of the universe.
Black Holes: It is a gravitational force so strong that nothing, not even light, can escape from it.
Galaxies: It is a gravitationally bound system of stars, dust, and gas that is held together by dark matter and black holes.
Star Formation: It is the process by which stars are born from the collapse of a cloud of gas and dust.
Cosmic Microwave Background Radiation: It is a form of radiation that is believed to be the oldest radiation emitted after the Big Bang.
Inflation: It is a theory that explains the rapid expansion of the universe after the Big Bang.
Cosmic Rays: It is high-energy particles that are constantly bombarding the Earth from space.
Gravitational Waves: It is a ripple in the fabric of space-time caused by the acceleration of massive objects.
Neutrinos: It is a subatomic particle that is produced by nuclear reactions in the sun, stars, and supernovae.
Black Body Radiation: It is a type of electromagnetic radiation emitted by a black body in thermal equilibrium.
Omega (Universe): It is the ratio of the actual density of matter in the universe to the critical density.
Redshift: It is the phenomenon where light from distant galaxies is shifted towards the red end of the spectrum due to the expansion of the universe.
Cosmological Constant: It is a term introduced by Albert Einstein to account for the stability of the universe.
Hubble's Law: It is the relationship between the distance of a galaxy and its apparent recession velocity.
Baryonic Matter: It is the ordinary matter that constitutes stars, planets, and galaxies.
Chemical Evolution: It is the theory that explains the formation of chemical elements in the universe.
Reionization: It is a period in the history of the universe when the first astrophysical sources, such as stars and black holes, reionize the neutral hydrogen that pervaded the universe.
CMB Polarization: It is a way of measuring the polarization of the cosmic microwave background radiation that can help us understand the properties of the universe better.
Classical Cosmology: The study of the structure and evolution of the universe on its largest scales using classical physics and gravity.
General Relativity: The study of the universe using Einstein's theory of general relativity, which describes the curvature of spacetime.
Quantum Cosmology: The application of quantum mechanics to understanding the universe's structure, primarily at the earliest stages of the universe.
Inflationary Cosmology: The study of the universe's initial rapid expansion and its aftermath, during which the universe underwent a period of exponential growth.
Dark Energy Cosmology: The study of the mysterious force that is causing the accelerating expansion of the universe.
Dark Matter Cosmology: The study of the unobservable matter in the universe that cannot be explained by any known form of matter or energy.
Galactic Astronomy: The study of the structure and evolution of individual galaxies and their constituent components, such as stars, interstellar gas, and dust.
Extragalactic Astronomy: The study of objects and phenomena outside the Milky Way, including galaxies, quasars, and active galactic nuclei.
Astrobiology: The study of the origin, evolution, distribution, and future of life in the universe.
Cosmogony: The study of the origin of the universe, including its key events and the time scales involved.
Quote: "The term cosmology was first used in English in 1656 in Thomas Blount's Glossographia."
Quote: "In 1731 taken up in Latin by German philosopher Christian Wolff, in Cosmologia Generalis."
Quote: "Religious or mythological cosmology is a body of beliefs based on mythological, religious, and esoteric literature and traditions of creation myths and eschatology."
Quote: "In the science of astronomy, cosmology is concerned with the study of the chronology of the universe."
Quote: "It is investigated by scientists, including astronomers and physicists, as well as philosophers, such as metaphysicians, philosophers of physics, and philosophers of space and time."
Quote: "Theories in physical cosmology may include both scientific and non-scientific propositions and may depend upon assumptions that cannot be tested."
Quote: "Physical cosmology is a sub-branch of astronomy that is concerned with the universe as a whole."
Quote: "Modern physical cosmology is dominated by the Big Bang Theory."
Quote: "The Big Bang Theory attempts to bring together observational astronomy and particle physics."
Quote: "A standard parameterization of the Big Bang with dark matter and dark energy, known as the Lambda-CDM model."
Quote: "Cosmology is a 'historical science' because 'when we look out in space, we look back in time' due to the finite nature of the speed of light."
Quote: "Physical cosmology is the study of the observable universe's origin, its large-scale structures, and dynamics, and the ultimate fate of the universe."
Quote: "Scientists, including astronomers and physicists, as well as philosophers, such as metaphysicians, philosophers of physics, and philosophers of space and time."
Quote: "Physical cosmology relies on scientific observations and theories, while religious or mythological cosmology is based on beliefs from various literary and cultural traditions."
Quote: "Physical cosmology is concerned with the study of the observable universe's origin, its large-scale structures, and dynamics."
Quote: "Theories in physical cosmology may depend upon assumptions that cannot be tested."
Quote: "To understand the nature and history of the universe and its ultimate fate."
Quote: "Cosmologists, including philosophers of space and time, investigate the fundamental aspects of space, time, and their relationship in the context of the universe."
Quote: "Cosmology is considered a 'historical science' because 'when we look out in space, we look back in time' due to the finite nature of the speed of light."