How many people do we need on a spaceship if we want an extrasolar colony to be viable (genetically)? Someone actually looked at that, and the answer is 1,400-6,800 (but might still require some population control).
Link: https://bis-space.com/shop/product/jbis-076-08-0288/
#SciFiScience #SpaceColonization #GenerationShip #Population
