Is becoming a multi-planet species the only way to protect humanity from extinction? Is it ethical to colonise Mars before solving Earth's problems? An astronaut candidate, solar physicist, and novelist debate whether humanity is ready to colonise the red planet.

The Panel:

*Ryan MacDonald - Mars One Astronaut Candidate + Exoplanet PhD Researcher, Cambridge University   / martiancolonist  

*Dr Simon Foster - Solar Physicist, Imperial College London
  / drfozzy  

*Chibundu Onuzo - Writer and novelist
  / chibunduonuzo  

*David Foster - TRT Roundtable Host

Credit: TNT World Roundtable (July 2017)