  The reformulation of gravity as the Nambu-Goldstone mode associated with
broken gauge symmetry is given and applied to cosmology. We find that; the new
gravity consists of a scalar mode and a tensor mode, of which the tensor mode
corresponds to the Einstein gravity; the universe pulsates without spacial
curvature; the gravitational constant increases from zero as the universe
expands and decreases to zero as the universe contracts; the dark energy is
identified with the sum of the gravitational energies of scalar and tensor
modes, while the dark matter is the mirage of the gravitational energy caused
by the projection into the $\Lambda$CDM spectrum; the gravitational equation
dictates the cosmological constant to be zero; the universe begins with
inflation, and the present age of the universe is approximately 550Gy.
