Overview:This story by Horizon traces the efforts of astronomers and scientists through history to prove the existence of life on Mars.
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First Air Date: Feb 04, 1964Last Air date: Aug 18, 2025Season: 61 SeasonEpisode: 1170 EpisodeRuntime: 60:14 minutesQuality: HDIMDb: 3.6 / 10 by 33 usersPopularity: 15.9893Language: en
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