Siding Spring
Siding Spring Mountain in New South Wales is the site of one of the world's most sophisticated observatories. All the southern sky is available for study, and the AAT, or Anglo-Australian Telescope, has already been used to make major discoveries.
Patrick Moore visits the observatory, and talks about the work there with David Malin and Dr David Allen.
Sound RON KEIGHTLEY
Photography jim PEIRSON Film editor PAUL ASHTON
Producer PIETER MORPURGO
'Repeated next Saturday on BBC2)