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Watch How the Universe Works Season 9 Episode 7 Online

  • 8.3/10
  • COUNTRIES: United States of America
  • Subtitles: English

The galaxy is full of stars ready to explode into supernovas, a stellar detonation powerful enough to destroy all life on Earth; it's an event that hasn't occurred in 400 years, and the search is on to locate which star may be next.