Incubators and ventilators are invaluable when treating extremely premature infants, but they’re a far cry from the cozy confines of a mother’s womb. In an effort to create an environment that more closely approximates the real thing, researchers have now developed an artificial womb that could dramatically reduce…
Astronauts are usually pretty busy while they're off planet so there hasn't been a lot of time to, um, look into this stuff, but it's unclear whether humans can procreate in weightless conditions. Apparently, you can't just march into space like you own it and do whatever you want.
When you're born, you have absolutely no defense against predators, and we humans can't really fend for ourselves for years. Why is this?