The mystery of Fast Radio Bursts: are we closer to the solution?

With the recent firm localization of the host galaxy of the Fast Radio
Burst FRB 121102, the solution to the mystery of these peculiar signals
might be getting closer. FRB 121102 is, however, the only one showing
repeating pulses, leaving open the possibility that more classes, hence
different progenitors, of FRBs exist. In this talk I will give, following
the timeline of their observational milestones, an overview of FRBs. I
will presenting their main observational features, some of the many
theoretical models suggested to explain their characteristics, and some
possible use of FRBs as cosmological probes.