A new study found that microgravity simulated on Earth hindered sperm cell movement, egg fertilization and embryo development ...

Having a baby in space may sound like science fiction, but scientists are now studying whether it could actually work. New research suggests that one major challenge could be helping sperm find their ...

Sperm may lose their ability to navigate in microgravity, raising new questions about whether human reproduction is possible ...

Researchers developed a method that visualizes gene activity across an entire embryo with high spatial detail. The resulting ...

A new study suggests humans face barriers to reproducing in space, with microgravity disrupting sperm movement.

Some newly reported clumps of cells growing in lab dishes have been hailed as the closest things to human embryos that scientists have ever made in the lab. These entities are human embryo models — ...

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 ...

German scientists have found that the breakdown of sugar in the body affects not only energy production, but also directly ...