  This paper discusses an ordinary homogeneous differential equation of the
second order with constant real-valued coefficients. The solution of this
equation has to satisfy additional conditions. The first of the conditions
stems from the analytical research results of numerous scientists and many
years of astronomic observations confirming the stability of the celestial body
motion. This paper discusses only an asymptotically stable solution. The second
condition is based on the fact that nature does not know of such notions as
left or right, up or down. Consequently, the solution for positive time is
reflected with respect to negative time, i.e. an even function is obtained for
time from minus to plus infinity. That solution has an important physical
meaning, which can be ascribed to it based on the known Khinchin's theorem. It
changes radically the idea of the Universe composition and the processes taking
place in it.
