Free Astronomy Magazine July-August 2021

33 ASTRO PUBLISHING T he open dome of the European Space Agency’s Test-Bed Tele- scope 2 stands out against its fellow telescopes at ESO’s La Silla Observa- tory in Chile. The Test-Bed Tele- scope 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. [F. Ocaña/J. Isabel/Quasar SR]