Topics: Gravitational waves detection from the coalescence of black holes and neutron star mergers • Detection and analysis of gravitational waves in the era of multimessenger astronomy • Strong field tests of General Relativity (Pulsars, Black holes, ...) • Quantum sensors • Pulsar timing • Fundamental physics with gravitational waves • Tests of the equivalence principle • Astrometry, solar system ephemerides and observational gravity tests • Space geodesy, Earth and Planetary Gravity, Navigation • Clocks, lasers and fundamental constants • Tests of GR and alternative theories (CPT and Lorentz violation, ...) • Modified gravity theories • Short range gravity and Casimir effect: classical, atom and neutron tests • Long range gravity, dark matter, dark energy • Cosmology, primordial black holes and gravitational waves