ABSTRACT

In cosmologists journey through modern cosmology, they could see how long-standing issues have finally found a solution. Cosmology is today much more tightly connected to fundamental physics than in the past and in fact it seems to provide a powerful phenomenological tool to circumvent current difficulties to access higher and higher energies in laboratory experiments. In particular, the discovery of gravitational waves might prove to be a revolutionary new way to explore the universe and finally give us access to stages in the history of the universe prior to Big Bang nucleosynthesis. The mystery of the matter-antimatter asymmetry of the universe might indeed be related to neutrino properties and future neutrino experiments might shed light on it. It seems that the music of new things to discover in cosmology will still play for long time, apparently able to surprise us ad libitum with its exciting twists.