末日倒数地球大撤退

  • 每期90分钟
  •   If we faced a countdown to destruc…  If we faced a countdown to destruction, could we build a spacecraft to take us to new and habitable worlds? Can we Evacuate Earth? NGC's two-hour special examines this terrifying but scientifically plausible scenario by exploring how we could unite to ensure the survival of the human race.

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