Absolute dating relative dating

However, the earliest times of the Universe – lasting from approximately 10 seconds after the Big Bang – are the subject of extensive speculation.Given that the laws of physics as we know them could not have existed at this time, it is difficult to fathom how the Universe could have been governed. In terms of time and space, it is unfathomably large (and possibly even infinite) and incredibly old by human standards. No matter what angle one took to answer that question, one could spend years answering that question and still barely scratch the surface.In addition to providing an explanation as to the Universe’s missing mass (along with Dark Matter) it also provided an explanation as to why the Universe is still accelerating, and offered a resolution to Einstein’s Cosmological Constant.Significant progress has been made in our study of the Universe thanks to advances in telescopes, satellites, and computer simulations.The current scientific consensus is that the Universe expanded from a point of super high matter and energy density roughly 13.8 billion years ago.This theory, known as the Big Bang Theory, is not the only cosmological model for explaining the origins of the Universe and its evolution – for example, there is the Steady State Theory or the Oscillating Universe Theory.

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The term “the Universe” is derived from the Latin word “universum”, which was used by Roman statesman Cicero and later Roman authors to refer to the world and the cosmos as they knew it.In the context of modern science, astronomy and astrophysics, it also refers to all spacetime, all forms of energy (i.e.electromagnetic radiation and matter) and the physical laws that bind them.It also accounts for the expansion of the Universe, the existence of the Cosmic Microwave Background, and a broad range of other phenomena.Working backwards from the current state of the Universe, scientists have theorized that it must have originated at a single point of infinite density and finite time that began to expand.

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