Embryo-like structures were sent onboard the Chinese space station and will spend five days in low-earth orbit.
There are a number of things we take for granted here on Planet Earth that are challenging in outer space. The sense of taste is dulled. Going to the bathroom is an ordeal that involves vacuums. And sleeping is a challenge, due to the lack of gravity and sunrise every 90 minutes. One thing that scientists haven’t closely studied, to date, is whether humans can reproduce beyond the Earth.
