The second meeting on "New Worlds in Astroparticle Physics" reflected the growing interest and enthusiasm in the joint field of particle physics and astrophysics. The recent results of Superkamiokande on the possible neutrino oscillations are reviewed both from the experimental and theoretical points of view. The determination of the mass density in the Universe covered a wide range of topics from the Large Scale Structures to the Supernovae Cosmology project.Each main subject was introduced by a comprehensive review. The study of the origin and composition of cosmic rays is inspiring a new generation of earth- and space-based experiments.