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The Sky at Night: The Tenth Planet?

on BBC One London

Patrick Moore explains why Planet X has been so difficult to detect, and what kind of place this dim, cold world at the limits of our solar system would be.

Contributors

Presenter:
Patrick Moore
Director:
Patricia Wood
Producer:
Patricia Owtram

BBC One London

About BBC One

BBC One is a TV channel that started broadcasting on the 20th April 1964. It replaced BBC Television.

Appears in

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