Overview:So what happens when two Super Massive Black Holes collide? We may be about to find out, because astronomers have spotted a pair of them in a close binary orbit for the very first time.
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First Air Date: Feb 11, 2015Last Air date: Mar 13, 2025Season: 12 SeasonEpisode: 404 EpisodeRuntime: 26:14 minutesQuality: HDIMDb: 1 / 10 by 1 usersPopularity: 4.5674Language: en
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