KM3NeT: status and perspectives for neutrino astronomy from the MeV to the PeV

KM3NeT is a multi-purpose neutrino observatory, being currently deployed at the bottom of the Mediterranean Sea. It consists of two detectors: ORCA and ARCA (for Oscillation and Astroparticle Research with Cosmics in the Abyss, respectively). ARCA will instrument 1 Gton of seawater, with the primary goal of detecting cosmic neutrinos with energies between several tens of GeV and PeV. Due to its position in the Northern Hemisphere, ARCA will provide an optimal view of the Southern sky, including the Galactic Center. In April 2021, a major step has be taken in the construction of ARCA, bringing the number of detection lines from one to six. ORCA, also currently running in a six-string configuration, is a smaller (∼ few Mtons) and denser array, optimized for the detection of atmospheric neutrinos in the 1 — 100 GeV. It can also perform low-energy neutrino astronomy studies, e.g. searching for MeV-scale neutrinos expected at core-collapse supernovae. In this contribution, some of the key scientific cases in the field of neutrino astronomy are reviewed and perspectives for their investigation with KM3NeT are presented.