In the earliest hours after fertilization, an embryo takes its first steps toward becoming a living organism by shedding maternal control and activating its own genetic program. This critical process, ...

Floating in near-weightless conditions can be disorienting for even the most experienced astronauts. Male reproductive ...

A team of scientists has just gotten a closer peek into one of the earliest and most fundamental steps of creating a human life. Research out today highlights how they captured—for the first ...

Having a baby in space may require a bit more direction, with new Adelaide University research revealing the navigational ...

These genes helped fuel faster cell division and quicker development. In contrast, female embryos activated genes tied to preparing for reproductive development and building immune system components.

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

Oxytocin, a hormone already known for its role in childbirth, milk release, and mother-infant bonding, may have a newfound purpose in mammalian reproduction. In times of maternal stress, the hormone ...

Having a baby in space may be far more complicated than expected, as new research shows sperm struggle to find their way in microgravity.

Learn how microgravity could affect sperm, fertilization, and embryonic development in space.

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

Sperm struggles to find its way to an egg in microgravity, suggesting mammalian reproduction in space may not be possible.