In previous episodes we have presented the many difficult challenges of getting humans to Mars and back. We looked at how we'd build and launch the rocket, get the astronauts to Mars safe and healthy, and how to build them a place to live and work. As we wind up our series, we have left the biggest question to last: should we go to Mars? Is it ethical for humans to travel to Mars? This is the conclusion of Quirks & Quarks' Pathway to Mars series. Each instalment looks at one part of the huge challenges inherent in the most ambitious journey of exploration we've ever attempted - a human mission to Mars.

From the Curio.ca streaming audio-visual collection.