The Virgo Instrument
Virgo is a gravitational interferometer, i.e. a special kind of telescope designed to detect gravitational waves from astrophysical phenomena driven by gravity, such as supernova explosions or stellar mergers. However, gravitational waves are very different from any kind of light, therefore Virgo does not look at all like a telescope.
Virgo is an extremely sophisticated machine based on advanced, cutting-edge technologies, fundamental to detect these extremely faint gravitational signals. In fact, the passage of a gravitational wave will induce a deformation of a billionth of a billionth of a meter in the 3