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

Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...

Add Yahoo as a preferred source to see more of our stories on Google. It’s still one of the biggest mysteries in science: How does a human cell — too small to see with the naked eye — divide and ...

Researchers have used naïve pluripotent stem cells to create an embryo model that looks and acts like a natural human embryo. They say it’s an ethical way of gaining a better understanding of ...