Overview:Astronaut Mike Massimino explores the universe's strangest alien galaxies, strange places that could be home to extraterrestrial life and deadly supermassive black holes.
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First Air Date: Aug 22, 2017Last Air date: Sep 25, 2018Season: 2 SeasonEpisode: 23 EpisodeRuntime: 43:14 minutesQuality: HDIMDb: 3.2 / 10 by 5 usersPopularity: 4.2262Language: en
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