The Test-Bed Telescope 2 with other La Silla telescopes in the background

The open dome of the European Space Agency's Test-Bed Telescope 2 stands out against its fellow telescopes at ESO’s La Silla Observatory in Chile. The Test-Bed Telescope 2 joins its partner Test-Bed Telescope 1, located at ESA’s deep-space ground station at Cebreros in Spain, scanning the sky for near-Earth objects. The project acts as a technology demonstrator for ESA’s planned ‘Flyeye’ telescope network.

The domes of ESO's 0.5 m and the Danish 0.5 m telescopes are visible in the background of this image.