Episode guide

S9·E13 The Extra Planet

Core Aired December 3, 1965

Synopsis

Recent Russian studies have suggested that there may be another major planet in the solar system. Patrick Moore discusses the evidence for the existence of a world even more distant than Pluto.

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Frequently Asked Questions

When did Season 9 Episode 13 of The Sky at Night air?

Season 9, Episode 13 ('The Extra Planet') originally aired on December 3, 1965.

How long is Season 9 Episode 13 ('The Extra Planet')?

The episode follows the standard broadcast runtime for The Sky at Night.

What happens in The Sky at Night Season 9 Episode 13?

Recent Russian studies have suggested that there may be another major planet in the solar system. Patrick Moore discusses the evidence for the existence of a world even more distant than Pluto....

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