The Bare Minimum Number of Martian Settlers? 110

Artist's concept of a habitat for a Mars colony. Credit: NASA

So you want to colonize Mars, huh? Well Mars is a long ways away, and in order for a colony to function that far from Earthly support, things have to be thought out very carefully. Including how many people are needed to make it work.

A new study pegs the minimum number of settlers at 110.

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