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Another Giant Leap Episodes Available now
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Alien Visitors
Astronomy writer Dr Stuart Clark asks where all the aliens are.
War in Space
Author Stephen Baxter considers the perils of freedom and conflict beyond Earth.
An Ecological Age
Professor Rachel Armstrong examines the challenge of building a living starship.
Three Ages to the Stars
Archaeologist Cameron Smith on future ages of humanity as it heads for worlds beyond Earth
For All Mankind
Dr Stuart Clark argues that humanity must leave Earth and set up outposts on other worlds.
