Stephen Hawking suggests we must look to the stars to ensure the survival of the human race. Do we need a new home?
While colonising distant planets is thousands of years off, scientists are already taking the first steps toward making humans an interplanetary species. In August 2016, astronomers announced the detection of Proxima B, an Earth-sized exoplanet in the habitable zone of the red dwarf star Proxima Centauri.
Our panel separates science-fact from science-fiction to determine if we really are on the verge of colonising space.
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