Horizon, 1999-2000 Episode guide

  1. Planet Hunters

    Horizon tells the story of the discovery of the first extrasolar planet.

    First broadcast: 16 Mar 2000

    Image for Planet Hunters Not currently available on BBC iPlayer
  2. Volcanoes of the Deep

    Documentary about the discovery of volcanic chimneys on the ocean floor near Mexico.

    First broadcast: 18 Nov 1999

    Image for Volcanoes of the Deep Not currently available on BBC iPlayer

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