The 64-metre-wide Parkes Radio Telescope in New South Wales, Australia is affectionately known as &quot;The Dish.&quot; It played an iconic role in receiving the first deliberate transmissions from the surface of another world, as the astronauts of Apollo&nbsp;11 set foot on our Moon. Now, Parkes joins once again in expanding human horizons as we search for the answer to one of our oldest questions: Are we alone? Image credit: Parkes Radio Telescope &copy; 2005 Shaun Amy.