  Direct Dark Matter searches are nowadays one of the most fervid research
topics with many experimental efforts devoted to the search for nuclear recoils
induced by the scattering of Weakly Interactive Massive Particles (WIMPs).
Detectors able to reconstruct the direction of the nucleus recoiling against
the scattering WIMP are opening a new frontier to possibly extend Dark Matter
searches beyond the neutrino background. Exploiting directionality would also
prove the galactic origin of Dark Matter with an unambiguous
signal-to-background separation. Indeed, the angular distribution of recoiled
nuclei is centered around the direction of the Cygnus constellation, while the
background distribution is expected to be isotropic. Current directional
experiments are based on gas TPC whose sensitivity is limited by the small
achievable detector mass. In this paper we present the discovery potential of a
directional experiment based on the use of a solid target made of newly
developed nuclear emulsions and of optical read-out systems reaching
unprecedented nanometric resolution.
