Exploring Outer Space
This year, the Voyager Mission will take its first close look at Titan.
How much have scientists already learned from the photographs of Jupiter Voyager I and II have sent back so far? There are now an estimated 5,000 satellites orbiting the earth. How do these work and what developments can be expected in the next ten years?
Dr Garry Hunt , head of the Laboratory for Planetary Atmospheres, University College, London, joins Teresa McGonagle to answer your questions. Produced by the Woman's Hour Unit
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