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تسجيل مستخدم جديدCoincidence of Universe age in $Lambda$CDM and Milne cosmologies
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The age of the Universe in the $Lambda$CDM cosmology with $Omega_{matter}=0.26$ and $Omega_{Lambda}=0.74$ is the same as in the Milne cosmology which correspods to an almost empty universe. In both cases it is a reciprocal Hubble constant, $1/H_0$, that for now preferred value $H_0=71 km/s/Mpc$ is 13.7 billion years. The most curious coincidence is that at the present time, in the $Lambda$CDM model the decelerated expansion is exactly compensated by the accelerated expansion, as if the Universe coast for 13.7 billion years.
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