Difference between astronomy and cosmology

Astronomy vs Astrophysics vs Cosmology

difference between astronomy and cosmology

Richard Feynman has nice words about science. It is not bad to read chapter 3 of "Feynman Lectures on Physics". The main point of his lecture.

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For a while now, I have been interested in Particle Astrophysics.
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Cosmology is a sub-field of Astrophysics, while Astrophysics is the branch of astronomy that deals with the physics of the universe, Cosmology studies universe as a whole. Astronomy is a natural science that deals with the study of celestial objects, such as stars, planets, comets, nebulae, star clusters and galaxies. Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties of celestial objects, as well as their interactions and behavior. Among the objects studied are galaxies, stars, planets, exoplanets, the interstellar medium and the cosmic microwave background. Cosmology studies universe as a whole and its phenomena at largest scales. The difference between Astrophysics and Cosmology is that Cosmology studies universe as a whole and its phenomena at largest scales.

Astronomy, astrophysics and cosmology are three closely related fields of study and are confused to be same. There is a difference between the domains and goals of the study of the three fields. Let us find out what it is. Astronomy is defined as " The science which treats of the constitution, relative positions, and motions of the heavenly bodies; that is, of all the bodies in the material universe outside of the earth, as well as of the earth itself in its relations to them. So astronomy deals with the observation of various celestial phenomenon which includes predicting the planet positions, eclipses, path of comets, meteor showers etc. Beyond solar system, astronomy talks about nebulae, stars and galaxies and predicts their position and provides their spectrum X-ray, Radio, Gamma, Infrared etc.

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What is the difference between Astrophysics and Cosmology?

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What Is Cosmology? Definition & History

Cosmology is a branch of astronomy that involves the origin and evolution of the universe , from the Big Bang to today and on into the future. According to NASA, the definition of cosmology is "the scientific study of the large scale properties of the universe as a whole. Cosmologists puzzle over exotic concepts like string theory, dark matter and dark energy and whether there is one universe or many sometimes called the multiverse. While other aspects astronomy deal with individual objects and phenomena or collections of objects, cosmology spans the entire universe from birth to death , with a wealth of mysteries at every stage. Humanity's understanding of the universe has evolved significantly over time. In the early history of astronomy, Earth was regarded as the center of all things, with planets and stars orbiting it.

What Is The Difference Between Astronomy, Astrophysics and Cosmology?

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