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Another Giant LeapEpisodes

  1. Alien Visitors

    Astronomy writer Dr Stuart Clark asks where all the aliens are.

  2. War in Space

    Author Stephen Baxter considers the perils of freedom and conflict beyond Earth.

  3. An Ecological Age

    Professor Rachel Armstrong examines the challenge of building a living starship.

  4. Three Ages to the Stars

    Archaeologist Cameron Smith on future ages of humanity as it heads for worlds beyond Earth

  5. For All Mankind

    Dr Stuart Clark argues that humanity must leave Earth and set up outposts on other worlds.