> all life dies on mars  yes and no. something like deinococcus radiodurans might be able to live somewhat near the surface. also, far below the surface there is some radioactive shielding by solid rock; gamma rays are significantly attenuated after passing through meters of rock, otherwise i agree completely that mars is an inhospitable alien death world. it'll simply always be too challenging to try to live there long-term while disconnected from earth's resources
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