  Pressure as a clean and efficient tool can bring about unexpected
extraordinary physical and chemical properties of matters. The recent
discoveries of superconductivity at nearly room temperature in hydrides
highlight the power of pressure in this aspect. Capturing such Tc
superconductivity at atmosphere pressure for the technological applications is
highly desired. The large-scale growth of diamond through the chemical vapor
deposition away from the usual high-pressure and high-temperature conditions
fuels such a hope. Similar to hydrides, Cs-doped C$_{60}$ was also found to
exhibit superconductivity by the application of pressure with a comparable Tc
of 40 K as MgB$_2$. Here, we report the successful realization of
superconductivity in Cs-doped C$_{60}$ at atmosphere pressure. The phase is
characterized to have the primitive cubic structure in the space group of Pa-3
with the stoichiometry of Cs$_3$C$_{60}$. The superconductivity is evidenced
from the observations of both the Meissner effect and zero-resistance state.
Although the pressure effects on superconductivity are different for the newly
discovered Cs$_{3}$C$_{60}$ compared to the known two phases with fcc and A15
structure, the evolution of Tc with the volume for all these superconductors
follows the same universal trend, suggesting the same pairing mechanism of the
superconductivity. Such a trend together with the nearly linear Tc vs the
lattice constant in the structure with smaller unit-cell volumes and the
neighbouring antiferromagnetic state in the structure with larger unit-cell
volumes invites the electron-phonon coupling and the electron correlations
together to account for the superconductivity in Cs$_3$C$_{60}$. The present
results and findings suggest a new route to capturing the superconductivity
which takes place at high pressures to atmosphere pressure environment.
