A team of computational social scientists at George Mason University has found via simulations that 22 people is the minimum number needed to start a human colony on Mars. The group has posted a paper describing their simulation on the arXiv preprint server.
@ApeNo1 @throws_lemy Genetic variation is not an issue. Just send frozen embryos.
They are probably going to be all cis women, anyway (we are the smaller ones consuming less resources).