  The physical basis of the modern cosmological inflationary models with
baryosynthesis and nonbaryonic dark matter and energy implies such predictions
of particle theory, that, in turn, apply to cosmology for their test. It makes
physics of early Universe ambiguous and particle model dependent. The study of
modern cosmology is inevitably linked with the probe for the new physics,
underlying it. The particle model dependent phenomena, such as unstable dark
matter, primordial black holes, strong primordial inhomogeneities, can play
important role in revealing the true physical cosmology. Such phenomena, having
serious physical grounds and leading to new nontrivial cosmological scenarious,
should be taken into account in the data analysis of observational cosmology.
