How was the Universe Created The Big - amazonia.fiocruz.br

The universe Latin : universus is all of space and time [a] and their contents, [10] including planetsstarsgalaxiesand all other forms of matter and energy.

The Big Bang theory is the prevailing cosmological description of the development of the universe. According to Tye of this theory, space and time emerged together While the spatial size of the entire universe is here, [3] it is possible to measure the size of the observable universewhich is currently estimated to be 93 billion light-years in diameter.

Mining for goldstone

The earliest cosmological models of the universe were developed by ancient Greek and Indian philosophers and were geocentricplacing Earth at the center. In developing the law of universal gravitationIsaac Newton built upon Copernicus's work as well as Johannes Kepler 's laws of planetary motion and observations by Tycho Brahe. Further observational improvements led to the realization that the Sun is one of hundreds of billions of stars in the Milky Waywhich is one of at least two trillion galaxies in the Bgi. Many of the stars in our galaxy have planets.

But what was before the Big Bang?

At the largest scalegalaxies are distributed uniformly and the same in all directions, meaning that the universe has neither an edge nor a center. At smaller scales, galaxies are distributed in clusters and superclusters which form immense filaments and voids in space, creating a vast foam-like structure. According to the Big Bang theory, the energy and matter initially present have become less dense as the universe expanded. Dark matter gradually gathered, forming a foam -like structure of filaments and voids under the influence Creatwd gravity.

Univesre Giant clouds of hydrogen and helium were gradually drawn to the places where dark matter was most denseforming the first galaxies, stars, and everything else seen today. From studying the movement of galaxies, it has been discovered that the universe contains much more matter than is accounted for by visible objects; stars, galaxies, nebulas and interstellar gas. This unseen matter is known as dark matter [16] dark means that there is a wide range of strong indirect evidence that it exists, but we have not yet detected it directly.

Was the zero point of the universe preceded by anything?

It suggests that about There are many competing hypotheses about the ultimate fate of the universe and about what, if anything, preceded the Big Bang, while other physicists and philosophers refuse to speculate, doubting that information about prior states will ever be accessible.

Some physicists have suggested various multiverse hypotheses, in which our universe might be one among many universes that likewise exist. The physical universe is defined as all of space and time [a] collectively referred to as spacetime and their contents. The universe is often defined as "the totality of existence", or everything that exists, everything that has existed, and everything that will exist.

Coincidence or conspiracy?

The word universe derives from the Old French word universwhich in turn derives from the Latin word universum. The same synonyms are found in English, such as everything as in the theory of everythingthe cosmos as in cosmologythe world as in the many-worlds interpretationand nature as in natural laws or natural philosophy. The prevailing model for the evolution of the universe is the Big Bang theory. The model is based on general relativity and on simplifying assumptions such as homogeneity and isotropy of space. A version of the model with a cosmological constant Lambda and cold dark matterknown as the Lambda-CDM modelis the simplest model that Tbe a reasonably good account of various observations about the universe.]