  We calculate numerically the torus one-point string diagram in the
two-dimensional string cosmology background by decomposing the one-point
functions in $c=1$ and $c=25$ Liouville CFT into torus one-point Virasoro
conformal blocks and integrating over the fundamental domain of the torus
moduli space. We find a remarkably simple result as a function of the outgoing
closed string energy. This torus one-point diagram is expected to contribute to
the one-point cosmological wavefunction at order $g_s$, and to the four-point
cosmological wavefunction at order $g_s^2$ through the disconnected product of
the torus one-point diagram and the sphere three-point diagram.
