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The Sky at Night

on BBC Two England

The Hunt for the Tenth Planet
Is there a new planet in the solar system? Many astronomers believe that there is a massive body beyond Neptune, the outermost of the main planets now known. It could be a planet, but it might also be a dark star or a black hole. The movements of the two Pioneer spacecraft now on their way out of the solar system may provide valuable clues.
Patrick Moore has been having discussions with the American astronomers in charge of the investigation, and gives an up-to-date report.
Producer PIETER morpur co

Contributors

Unknown:
Patrick Moore
Producer:
Pieter Morpur

BBC Two England

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