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Watch Horizon Season 43 Episode 12 Online

  • 7.4/10
  • COUNTRIES: United Kingdom
  • Subtitles: English

A team of scientists set out to solve the mystery of chunks of ancient glass scattered in a remote part of the Sahara Desert. Their quest takes them on a perilous journey into the Great Sand Sea, the wastes of Siberia and the test site of the world's first atomic bomb in New Mexico. What their search uncovers is a devastating new natural phenomenon.