formation, accretion upon black holes, feedback Semi-analytical Models Stellar Astrophysics – Synthesis of stellar populations Stellar Clusters Galaxies and the Local Group The production of dust and stellar winds Models and observations of Supernovae Stellar Evolution and Astroseismology Stellar Formation and proto-stars The Sun and the Solar System – The structure of the magnetic field in the solar atmosphere Research and characterization of minor bodies of the Solar system Relativistic Astrophysics – Neutron Stars Anatomy of Magnetars X-ray pulsars Equation of state of neutron stars Gamma-Ray Burst, Physics and Astrophysics Multi-messenger Astrophysics (Gravitational waves and e electromagnetic signals) OAR takes part in a large number of technological projects, both on the ground and in the space: ESO REM – Remir VLT/MOONS Laser Guide Stars E-ELT HIRES LBT SHARK – PI of the VIS section, participation in NIR LBC LINK ESA GAIA – software Euclid – Science preparation, simulations, EBC participation, Lead OU-Mer Athena – Science preparation, Ground Segment, Innovation center Juice Solar Orbiter CTA/ASTRI – Archive, Software for data analysis SAMM – Solar Telescope with magnetic-optical filters Management of the instruments in the observing station of Campo Imperatore, namely Schmidt and AZT telescopes NASA/NuSTAR – management of calls for the support to scientific research, and activities of the science team NASA/Osiris-REX Laboratories and technological/scientific infrastructures OAR hosts and optical lab and an electronic lab. OAR hosts the LBT Italian Coordination Center, and manages proposals, observations, data reduction and analysis, as well as an archive of scientific data OAR supports the activities of di ASI Science Data Center, manages its staff, and carries on a scientific and technological collaboration. Museum, library, historical archive, Public Outreach and teaching OAR has always been committed to a very intense activity of Astronomy outreach and teaching. OAR hosts AstroLAB (since 2001) and LightLAB (since 2013), interactive labs open to school groups. Every year, a total number of 5.000 to 10.000 pupils (from kindergarten to primary and secondary schools) visit these labs with experienced guides. OAR has organized three editions of “Cosmoscuola”, a series of Astronomy lessons and practical activities for children from 7 to 14 years of age. A certain number of OAR researchers have collaborated in organizing lessons on their scientific area of study. OAR has organized – in particular in the years from 2011 to 2017 – 15 to 50 star-gazing nights per year, open to the public. These evenings, in which visitors