The Sky at Night S33 E04 Observing from La Silla

High in the Andes mountains of Chile lies one of the world's major observatories, La Silla, with its 15 telescopes. Conditions there are ideal - far better than anywhere in Europe. In this programme Patrick Moore visits La Silla , talks to the astronomers there, and even has what may be his last view of Halley's Comet.