2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/124542The age of the Universe in the $Λ$CDM cosmology with $Ω_{matter}=0.26$ and $Ω_Λ=0.74$ 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 $Λ$CDM model the decelerated expansion is exactly compensated by the accelerated expansion, as if the Universe coast for 13.7 billion years.2 pages, 1 figure, to apear in Acta Physica Polonica BAstrophysicstext