Definition of Cosmology

1. Cosmology is a branch of astronomy responsible for the study of the physics of the universe, that is, its structure, evolution, space-time relationships, and its origin.

2. Philosophy. The search for a rational theory capable of explaining the nature of the universe.

Grammatical category: noun fem.
in syllables: cosmo-lo-gí-a.


The cosmology is that one branch of astronomy who deals with study of the general laws of the origin of the world and the evolution of the universethat is, cosmology is the large-scale study of both the structure and history of the universe as well as humanity’s place in it.

Branch of Astronomy that studies the origin of the universe, its structure and the place that man occupies there

Although the name of Cosmology has a relatively modern origin, in the year 1730, when it was used for the first time in the work Christian Wolff’s Cosmology GeneralisActually, the study of the universe had already been going on for a few more years and also the commitment of other sciences and disciplines such as physics, astronomy, esotericism, religion and philosophy.

So, modern cosmology, we can assert that it has emerged from the century XVIII and the hypothesis that maintains that the stars of the milky way belong to a stellar system with a discoidal shape, of which the sun itself is a part and that other bodies also visible through the telescope turn out to be stellar systems similar to that of the milky way, was his great ally and companion in this resurgence.

The galaxy to which we belong, the Milky Way, is made up of millions of stars and the sun is one of the most important of its kind.

From our planet one can only appreciate the profile of the aforementioned galaxy, while from the outside the most accurate perception in terms of the scale of the Milky Way is feasible. According to the studies and investigations carried out in this regard, it is about twenty thousand light years thick and about one hundred thousand years long.

The Big Bang explosion originates the world. The close relationship with Astronomy

The experts in the field of cosmology, formally called cosmologists, consider that since the Big Bang explosion occurred, a fantastic and enormous explosion, which occurred millions of years ago, which is what is believed to have given rise to our universe. , etc., the first has not stopped expanding

Cosmology could not exist without Astronomy, it needs it as a human being in the water to be able to live, because it is nourished by its great theories and knowledge that come from a long time.
Astronomy deals specifically with the structures that make up our universe and cosmology has been entrusted with the study of the origin and evolution of the universe.

Bases and types of cosmology

Since it laid its foundations, cosmology has been based on two fundamental maxims that guide its work. On the one hand, the theory of relativity drawn up by the scientist Einstein and the inflationary theory. For the first, space and time were formed in a single dimension and that is how time manifests itself in relation to movement, a fact that marks the movements that take place in the universe. And for its part, the second theory says that the universe was created from the explosion of the Big Bang and this triggered the consequent expansion of matter.

Meanwhile, cosmology is divided into two types, physical cosmology, which deals with studying the large-scale structure and dynamics of the universe, especially deals with answering questions such as the origin, evolution and fate of the universe. And on the other hand the alternative cosmologywhich represents all those theories, models or ideas that contradict the standard model proposed by physical cosmology.

Physical cosmology takes as its developmental kick the General theory of relativity formulated by Albert Einstein and on the other hand to the improvement in the astronomical observations of objects that are located extremely far away. Such a situation triggered researchers to go from speculation to the scientific search for the origins of the universe, a clear example of this is the big Bang Theoryerected in some way as the standard response paid by most cosmologists due to the breadth of phenomena it involves.

Basically, this type of cosmology tries to understand the great structures of the universe at the present time: galaxies, super clusters, galactic groupings, using the most distant and energetic objects in the universe, such is the case of supernovae, in order to understand evolution. of it and know the phenomena that occurred at the beginning of it as well.

Currently, cosmology studies and analyzes phenomena via the so-called particle accelerators, special devices that use electromagnetic fields and make it possible to reproduce the energy level that the universe had at the time of its birth and thus the evolution and evolution can be known. development that came later.