Our aim is to explore the close environment of Active Galactic Nuclei (AGN)and its connection to the host galaxy through the morphology and dynamics ofthe cold gas inside the central kpc in nearby AGN. We report Atacama LargeMillimeter/submillimeter Array (ALMA) observations of AGN feeding and feedbackcaught in action in NGC613 and NGC1808 at high resolution (few pc), part of theNUclei of GAlaxies (NUGA) project. We detected trailing spirals inside thecentral 100pc, efficiently driving the molecular gas into the SMBH, andmolecular outflows driven by the AGN. We present preliminary results of theimpact of massive winds induced by radio jets on galaxy evolution, based onobservations of radio galaxies from the ALMA Radio-source Catalogue.

Globular clusters (GCs) are dense, gravitationally bound systems of thousandsto millions of stars. They are preferentially associated with the oldestcomponents of galaxies, and measurements of their composition can thereforeprovide insight into the build-up of the chemical elements in galaxies in theearly Universe. We report a massive GC in the Andromeda Galaxy (M31) that isextremely depleted in heavy elements. Its iron abundance is about 800 timeslower than that of the Sun, and about three times lower than in the mostiron-poor GCs previously known. It is also strongly depleted in magnesium.These measurements challenge the notion of a metallicity floor for GCs andtheoretical expectations that massive GCs could not have formed at such lowmetallicities.