Observing from the Atacama The Atacama Desert of Chile is an exceptionally good site for astronomers; three major observatories have been set up there. One (La Silla) was the subject of a Sky at Night programme earlier this year. Patrick Moore visits the other two, Cerro Tololo and Las
Campanas, and talks to the astronomers working there. Sound DOUG WHITTAKER
Photography ALASTAIR MITCHELL Videotape editor DAVE RIXON Producer PIETER MORPURGO