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.
Only the purest bloodlines. Bloodlines so pure that they couldn’t find a spec of unpure blood in Uncle Daddy during his last battery of genetic testing to determine why we all have blue skin and an allergy to calcium.