> "With a self-sustainable (even if harsh) Mars colony, a nuclear war on Earth no longer necessarily means the end of humanity." At least in terms of radiation

> "With a self-sustainable (even if harsh) Mars colony, a nuclear war on Earth no longer necessarily means the end of humanity." At least in terms of radiation, living on Mars seems less likely to be survivable than a nuclear war on Earth since fallout decays away but the space-based radiation bathing Mars is moderately high and permanent. See: https://blogs.scientificamerican.com/life-unbounded/death-on-mars1/ https://blogs.scientificamerican.com/life-unbounded/death-on...