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Phil and Stephen discuss the implications of the discovery of the first potentially habitable planet
outside the solar system. What does the existence of Gliese 581g imply
about the existence of more such worlds? What does it tell us about the
potential for life elsewhere in the galaxy.
outside the solar system. What does the existence of Gliese 581g imply
about the existence of more such worlds? What does it tell us about the
potential for life elsewhere in the galaxy.
If we’re ever to travel to a planet such as 581g, how will we get there? And what will motivate us to go?
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