The Sky at Night · SEASON 26

The Hunt for the Tenth Planet

Episode 8 · 1982-07-19

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Season 26Episode 8★ N/A/10
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Episode overview

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 space-craft now on their way out of the solar system may provide valuable clues. Patrick Moore gives an up-to-date report.

Season 26 episodes

1. The Winter Sky1982-01-10 2. The Changing Face of Venus1982-02-07 3. The Largest Star?1982-03-14 4. When Planets Loop the Loop1982-04-04 5. The Unfolding Universe1982-04-25 6. The Depths of Space1982-05-16 7. La Palma: a New Observatory1982-06-06 8. The Hunt for the Tenth Planet1982-07-19 9. Siding Spring1982-08-22 10. The Mystery of the Spiral Arm1982-09-26 11. The Cosmic Serpent1982-10-31 12. The Last Man on the Moon1982-12-06