Authors: Mirosław J. Kubiak
Comments: 7 Pages.
We proposed a description of the gravitational phenomena in a new medium, which merges the Minkowski four-dimensional spacetime and the bare mass density into the single idea. Under influence outer gravitational field the Minkowski four-dimensional spacetime does not change, while the bare mass density changing and becomes the effective mass density. This is an alternative attempt to describe gravitational phenomena, using a new idea of massification of the spacetime.