6 core challenges that researchers must consider as the race to create models that are ever closer to real human embryos heats up.

Dr Jitesh Neupane discusses his hematoids model and opportunities to study childhood blood disorders and future stem cell therapies.

Scientists have gotten an unprecedented look at how the human embryo implants in a uterus. They did this by creating very primitive, womb-like environments in the lab. "This is really important work ...