Who hasn't seen it before: the view through the microscope in which a sperm penetrates an egg cell and fertilizes it. This fundamental step in procreation happens dynamically and seemingly without ...

When sperm meets egg, the start of life is not quiet. Under a special microscope, researchers have watched a tiny light show at fertilization. They see a microscopic flash at fertilization, a burst of ...

Research findings are available online in the journal Communications Biology. The original story “ Getting pregnant in space isn’t that easy, study finds ” is published in The Brighter Side of News.

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

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

Researchers at Oregon Health & Science University (OHSU) recently reported a striking first: They created human eggs in the lab using skin cells and then fertilized those lab-derived eggs with human ...

Early lab work shows reprogrammed skin cells can yield embryos, hinting at future infertility solutions but raising safety questions that demand more study. Infertility affects millions of people ...

In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a 'fairy tale,' rooted in ...

A microscope image of a human egg contains a nucleus taken from a skin cell. (Mitalipov Laboratory at Oregon Health & Science University) WASHINGTON — Oregon scientists used human skin cells to create ...