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Basic observational facts of cosmology provide an understanding of theoretical models of the universe that are based on the general theory of relativity and the cosmological principle. Find skills to understand distribution of galaxies; the homogeneity and isotropy of the Universe; the expansion of the Universe, the velocity distance law and Hubble's law. Explore Cosmological models; basic parameters Ho, Wo, L and the age of the Universe; the curvature of space; the mass to light ratio for galaxies and clusters of galaxies; the mean mass density of the Universe. Dark matter and dark energy. The microwave background radiation, its spectrum and distribution. Results from COBE and from WMAP. The photon to baryon ratio. The hot big bang model and the universe at .0001 of a second. Early universe nucleosynthesis. Relic neutrinos. The flatness problem, the horizon problem and the inflationary universe hypothesis. The cosmological constant and dark energy. Got a Cosmology / Astronomy project? Hire the best Cosmology / Astronomy freelancers with the right skills and background in April 2025 to get your Cosmology / Astronomy job done quickly. Schedule a consultation with a Cosmology / Astronomy freelancer today. Read less
