Space is full of radiation, which is bad for both babies and non-babies alike, but we also have to worry about how microgravity affects the human body, too.
Colonizing space or another planet is most likely a fool's errand and a giant waste of money that should instead go toward making Earth a better place to live, if we're ever going do it successfully, humans are going to have to figure out how to safe... [5736 chars]