Status of Advanced Virgo.

On August 2017, after about six years of technical upgrades, Advanced Virgo joined the two Advanced LIGO detectors in their second observing run. The direct detection of gravitational waves confirmed a key prediction of General Relativity 100 years after its formulation. With the joint detection of GW signals from the coalescences of black-hole binaries and neutron star binaries, the network of interferometric gravitational wave detectors demonstrated to be a new tool for astronomy, astrophysics and cosmology. The challenging achievement to detect strain changes at the $10^{23}$ level requires a combination of state-of-the-art technologies for sensitive optical sensing and for isolation from environmental disturbances. My presentation will summarise the apparatus of Advanced Virgo to describe the interferometric detection of gravitational waves. I will provide an overview of the interferometer configuration, a summary of the sensitivity limits, and near-term as well as long-term prospects.