S12·E6 The Planets
Synopsis
By the end of 1974, Mars, Venus, Mercury and Jupiter had all been visited by spacecraft. For the first time scientists saw in sharp detail the continents, mountains, valleys and volcanoes of other worlds. Tonight's programme shows how these geological features give clues to the way the planets evolved; how they have helped scientists in their attempt to reach back 5,000 million years to understand the formation of the solar system itself.
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Frequently Asked Questions
When did Season 12 Episode 6 of Horizon air?
Season 12, Episode 6 ('The Planets') originally aired on March 10, 1975.
How long is Season 12 Episode 6 ('The Planets')?
The runtime for this episode is approximately 60 minutes.
What happens in Horizon Season 12 Episode 6?
By the end of 1974, Mars, Venus, Mercury and Jupiter had all been visited by spacecraft. For the first time scientists saw in sharp detail the continents, mountains, valleys and volcanoes of other worlds. Tonight's programme shows how these geological features give clues to the way the planets evolv...
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