Test-Bed Telescope 2 at ESO’s La Silla Observatory

The new Test-Bed Telescope 2, a European Space Agency telescope, is housed inside the shiny white dome shown in this picture, at ESO’s La Silla Observatory in Chile. The telescope has now started operations and will assist its northern-hemisphere twin in protecting us from potentially hazardous, near-Earth objects.

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