New study finds microgravity disrupts sperm and embryo development, raising concerns about human reproduction in space.

A Chinese scientist horrified the world in 2018 when he revealed he had secretly engineered the birth of the world's first gene-edited babies. His work was reviled as reckless and unethical because, ...

In 2018, Chinese scientist He Jiankui shocked the world when he revealed that he had created the first gene-edited babies. Using Crispr, he tweaked the genes of three human embryos in an attempt to ...

Researchers have captured the very first real-time, three-dimensional images and videos of a human embryo implanting into synthetic uterine tissue—revealing a key stage in reproduction. The resulting ...