
The Virgo interferometer is located in the south of Pisa in Italy. The main building in which the laser beam is generated, sent into the interferometer arms, and measured on photodiodes is visible at the bottom of the images. The buildings around the two 3 kilometer long arms are visible: the laser beam propagates all the arms and is reflected by a mirror
suspended in a building at each end.
Credit: Virgo Collaboration

Credits: Virgo Collaboration

Artist's sketch of the Virgo interferometer with its suspended mirrors.
Credit: Virgo Collaboration/LAPP

Picture of the building around a 3 kilometer long tube of an arm of the Virgo interferometer. The building where is located the suspended mirror at the end of the arm is seen on the left.
Credit: Virgo Collaboration

The main building is visible, as well as the start of the two 3 kilometer long arm tubes.
Credit: Virgo Collaboration

View of the office buildings located close to the interferometer main building.
Credits: Virgo Collaboration/N. Baldocchi

Picture with the main building and taken looking towards North. The beginning of the 3 km West arm is visible. The 144 m long tube for the input mode-cleaner cavity is also visible along the West direction, with the small building that hosts one of the mirror of the cavity.
Credits: Virgo Collaboration/N. Baldocchi

Picture taken looking Eastwards. The beginning of the two 3-km arms go out of the main building, as well as the 144 m long tube for the input mode-cleaner cavity (along the West direction). The office buildings are located nearby.
Credits: Virgo Collaboration/N. Baldocchi

Picture taken looking Southwards. The beginning of the two 3-km arms go out of the main building, as well as the 144 m long tube for the input mode-cleaner cavity (along the West direction). The office buildings are located nearby.
Credits: Virgo Collaboration/N. Baldocchi

Picture taken looking Westwards. The beginning of the two 3-km arms go out of the main building, as well as the 144 m long tube for the input mode-cleaner cavity (along the West direction). The office buildings are located nearby.
Credits: Virgo Collaboration/N. Baldocchi

The beginning of the two 3-km arms go out of the main building, as well as the 144 m long tube for the input mode-cleaner cavity (along the West direction). The office buildings are located nearby.
Credits: Virgo Collaboration/N. Baldocchi

Picture taken looking Westwards. The 3-km west arm passes close by one of the office building.
Credits: Virgo Collaboration/N. Baldocchi

The office buildings are located nearby the 3-km long West tube.
Credits: Virgo Collaboration/N. Baldocchi

First EGO office building with in the background the Virgo interferometer main building.
Credits: Virgo Collaboration/N. Baldocchi

View of the main building and of the 3-km long tube along North direction.
Credits: Virgo Collaboration/N. Baldocchi

Picture taken looking Northwards with the office buildings and the main building of the interferometer.
Credits: Virgo Collaboration/N. Baldocchi

Credits: Cyril Frésillon/Virgo/Photothèque CNRS

Since 2007, the data from the LIGO, GEO and Virgo detectors are shared and analyzed together as from a single "telescope". Sharing the data is of main importance to reject local perturbations in the data and to localise the gravitational wave in the sky, i.e. to make astronomy.
Credits: Virgo Collaboration/LAPP and Tom Patterson (www.shadedrelief.com)

Credits: Virgo Collaboration/M. D'Andrea