These two orbs have little in common beyond their shape. The one farthest from the camera is our Moon, and the other is one of the three ExTrA telescopes at our La Silla Observatory in #Chile. What is ExTrA looking for? 👉 https://www.eso.org/public/images/potw2613a/ 📷 L. Sbordone/ESO #astrodon #astronomy #astrophysics #space #science