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The physical universe is defined as all of space and time [a] (collectively referred to as spacetime) and their contents. [10] Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.
The basic definition of Cosmology is the science of the origin and development of the universe. In modern astronomy, the Big Bang theory is the dominant postulation. Philosophy of cosmology is an expanding discipline, directed to the conceptual foundations of cosmology and the philosophical contemplation of the universe as a totality.
Carroll claims that poetic naturalism resolves many of the conflicts caused by the fundamental differences between the various branches of science and philosophy. For example, the universe can be described mechanically in terms of atoms obeying certain laws. This results in a deterministic universe incompatible with the concepts of choice or ...
The Hubble eXtreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed at that time. Except for the few stars in the foreground (which are bright and easily recognizable because only they have diffraction spikes), every speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is ...
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The First Three Minutes attempts to explain the early stages of the universe after the Big Bang.Weinberg begins by recounting a creation myth from the Younger Edda and goes on to explain how, in the first half of the twentieth century, cosmologists have come to know something of the real history of the universe.
The Elegant Universe, Nova episode about the search for the theory of everything and string theory. Theory of Everything, freeview video by the Vega Science Trust, BBC and Open University. The Theory of Everything: Are we getting closer, or is a final theory of matter
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