  We find new, simple cosmological solutions with flat, open, and closed
spatial geometries, contrary to the previous wisdom that only the open model is
allowed. The metric and the St\"{u}ckelberg fields are given explicitly,
showing nontrivial configurations of the St\"{u}ckelberg in the usual
Friedmann-Lema\^{i}tre-Robertson-Walker coordinates. The solutions exhibit
self-acceleration, while being free from ghost instabilities. Our solutions can
accommodate inhomogeneous dust collapse represented by the
Lema\^{i}tre-Tolman-Bondi metric as well. Thus, our results can be used not
only to describe homogeneous and isotropic cosmology but also to study
gravitational collapse in massive gravity.
