Understanding Our Universe : Current Status and Open Issues

  title={Understanding Our Universe : Current Status and Open Issues},
  author={Thanu Padmanabhan},
  journal={arXiv: General Relativity and Quantum Cosmology},
  • T. Padmanabhan
  • Published 1 March 2005
  • Physics
  • arXiv: General Relativity and Quantum Cosmology
1. Prologue: Universe as a physical system Attempts to understand the behaviour of our universe by applying the laws of physics lead to difficulties which have no parallel in the application of laws of physics to systems of more moderate scale — like atoms, solids or even galaxies. We have only one universe available for study, which itself is evolving in time; hence, different epochs in the past history of the universe are unique and have occurred only once. Standard rules of science, like… 
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