A night view of the BlackGEM array at ESO’s La Silla Observatory

Shown in this nighttime image are the three telescopes of the BlackGEM array at ESO’s La Silla Observatory in Chile. The Large and Small Magellanic Clouds can be seen just above the telescopes.

The BlackGEM array can quickly scan large areas of the sky to find a source that has emitted gravitational waves detected by LIGO and Virgo.