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

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

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

Another hurdle has emerged that must be overcome for long-term space habitation and the colonization of Mars. On the 26th ...

How does a tiny cluster of cells become an embryo with a head, trunk, and tail? And how do thousands of genes coordinate this ...

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 ...

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 — ...

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