Andrea Possenti, National Institute for Astrophysics (INAF), Osservatorio Astronomico di Cagliari in Selargius, Italy — February 1, 2027

97 years after the capture of the first cosmic waves, radio astronomy is more alive than ever. After a brief historical roundup of the most impactful discoveries of this discipline, the talk will review the current landscape of the instrumentation and of the future projects, with a particular focus on a recent application of radio astronomical data, which can be exploited to create a galactic scale gravitational wave detector operating in the ultra-long period range of the gravitational wave spectrum. This instrument, dubbed Pulsar Timing Array (PTA), nicely complement the frequency range of other current or future GW detectors.