  Quantum geometrodynamics (QGD) in extended phase space essentially
distinguished from the Wheeler - DeWitt QGD is proposed. The grounds for
constructing a new version of quantum geometrodynamics are briefly discussed.
The main part in the proposed version of QGD is given to the Schrodinger
equation for a wave function of the Universe. The Schrodinger equation carries
information about a chosen gauge condition which fixes a reference system. The
reference system is represented by a continual medium that can be called ``the
gravitational vacuum condencate". A solution to the Schrodinger equation
contains information about the integrated system ``a physical object +
observation means (the gravitational vacuum condensate)". It may be
demonstrated that the gravitational vacuum condensate appears to be a
cosmological evolution factor.
