  New results of analysis of $K^0_S-$meson spectra measured over a wide range
of energy $\sqrt {s_{NN}}=7.7-200$ GeV and centrality in $Au+Au$ collisions by
the STAR Collaboration at RHIC using the $z$-scaling approach are presented.
Indication on self-similarity of fractal structure of nuclei and fragmentation
processes with $K^0_S$ probe is demonstrated. The energy loss as a function of
the collision energy, centrality and transverse momentum of the inclusive
strange meson is estimated.
