Cosmology

What Is Cosmology

The origination of the universe has been a question in millions of minds for many years. Astronomers originally estimated that the Big Bang occurred between 12 and 14 billion years ago, and that they Solar System is 4.5 billions years old. Humans are believed to have been in existence for only a few million years. By looking for the oldest stars and measuring the rate of expansion of the universe back to the Big Bang, astronomers can estimate the age of the universe, and perhaps answer the age old question of how long the universe and all that it entails have been evident.

By studying globular clusters, astronomers can place a lower limit to the universe’s age.

XEUS

A new research mission is underway to study the origins of the universe. XEUS, which is a next-generation x ray space observatory, and stands for X-ray Evolving Universe Spectroscopy, will focus on studying the fundamental laws of the universe. It will show unprecedented sensitivity to the million degree universe, and explore they key areas of contemporary astrophysics, which include the growth of massive black holes, cosmic feedback, galaxy evolution, large scale structure evolution, extreme gravity, and the dynamical evolution of cosmic plasmas and cosmic chemistry.

The History of Cosmology

Around four thousand years ago the Babylonians were considered to be skilled astronomers. They were able to predict the motions of the moon, stars, planets, and sun and could predict eclipses. It was the Ancient Greeks, however, who built the first cosmological model that would interpret these motions in the universe. During the 4th century BC, they determined that the stars were fixed on a celestial sphere which rotates around the earth every 24 hours. They also determined that the planets, sun and the moon moved in the ether found between the earth and the stars.

New Study Sheds Light on Star Formation

In September 2007, a new study provided some insight as to how the first stars were formed in the universe, around 13 billion years ago. Cosmologists from Durham University in Durham county, England. Durham Universities Cosmologists have suggested that the original formation of the first stars were very dependent on the formation of dark matter, which is the unknown material that makes up most of the universe’s mass.

Physical cosmology

Physical cosmology is only one of the many beliefs associated with cosmology as a whole. Physical cosmology is a branch of astronomy, and studies the universe in its large-scale structure. It also studies questions about the formation and evolution of the universe. Physical cosmology began with the general relativity theory from Albert Einstein, and involves astronomical observations of very distant objects.

Site Selected for Giant Magellan Telescope

The Giant Magellan Telescope Consortium has recently announced that the Giant Magellan Telescope will be constructed at Cerro Las Campanas in Chile. This site was chosen due to the high altitude, as well as the dry climate, dark skies, and the brilliant visual quality. The decision was a step in the realization of the goal of the GMT for building the premier next generation astronomical observatory. Periodically, telescopes are made larger and larger, and scientists and researchers are able to see fainter objects, farther distances, and with more and more clarity. Using the Giant Magellan Telescope will undoubtedly produce astronomical results in dealing with insights into the universe that have only, until this point, been a far off vision of scientists.

Religious Cosmology

Religious Cosmology is based for the most part on the belief that science can not justify the creation of the universe, that it was created by God in accordance with the teachings of the Bible. The book of Genesis, the first book of the Bible, details the creation of the heavens and the earth. According to the Bible, creation of the universe, earth, and all living creatures occurred over a six day span, with God resting on the seventh day, which many believe to be Sunday, the day of worship. Religious cosmology goes along with this belief, and argues against other theories such as the Big Bang theory, in which scientists believe that the universe was the result of a major explosion billions of years ago, which produced the universe, and all life that it holds.

Beliefs, Theories, and Speculation

Cosmology and its study revolves around a wide variety of different beliefs, theories, and speculations. It covers a vast expanse of where we came from, how we got here, and what the universe is comprised of, among many other things. Cosmology may never be a completed study. There are many things that we still do not know, and things that we may actually never know.

What is Cosmology?

Cosmology is simply the study of the universe as a whole, and our place within it. Not to be confused with cosmetology which involves make up, cosmology revolves around the make up of all that we see, in a sense.There are several different aspects of the study of cosmology. Physical cosmology is the study of the physical aspect of the beginning of the universe and the nature of it on the largest possible scale. A simpler way of putting it is this, physical cosmology is the study of the heavens and all that they entail, how they began, and our place in them, where they lead to, and whether or not they have a beginning and an end.

Metaphysical cosmology deals more with the earth itself in relation to the universe and the totality of space and time. More specifically, metaphysical cosmology deals with what caused the universe to form, what it is made up of, and why it is there at all. Other aspects include whether or not the universe is necessary, or was necessary when it was created. In earlier times, metaphysical cosmology tended to be considered as religious cosmology, however, the two now have their own distinct studies.

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