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V. B. MorozovP. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, RussiaPart of the book: Future Relativity, Gravitation, CosmologyAbstractHomogeneous isotropic empty space is described here based on its metric. The only parameter of this metric is taken to be equal to the Hubble constant. The tensor of energy-momentum of empty space is calculated. Upon this, the density of the empty homogeneous space turned out to be equal to the expected density of the Universe. In other words, the density of empty space is “dark energy.” Of not less importance is the fact that the same metric imposes the exponentially increasing law of redshift asymptotically close to the Hubble law at low redshift values. The solution has no singularities.Keywords: dark energy, metric of Universe, redshift, accelerated expansion, density of UniverseReferences[1] A. Friedman, Z. Phys. 10 (1922), pp. 377-386.[2] Einstein, Sitzungsber. Preuss [Einstein, session report. Prussia]. Akad. Wiss., phys.-math.Kl., 1931, 235-237.[3] Einstein, A. D. Fokker. Ann. Phys., 1914, 44, 321-328.[4] V. A. Fock Theory of space, time and gravity, Pergamon Press 1964.[5] M. V. Sazhin, General relativity theory for astronomers. URL: http://www.astronet.ru/db/msg/1170927.[6] A. Einstein, Jahrb. d. Radioaktivitat u. Elektronik, 4, 411-462 (1907).[7] H. Lass, American Journal of Physics, 31, pp. 274-276, 1963.[8] V. B. Morozov, arXiv:1305.5412v4 [gr-qc].[9] Morozov V. B. The General Theory of Relativity, a New Iteration. 2019. URL:https://www.researchgate.net/publication/331262328_The_General_Theory_of_Relativity_a_New_Iteration/download
