Researchers put human sperm into a microgravity simulation chamber designed to mimic the female reproductive tract and tested ...

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

“In space, stem cells decline in function,” said lead study author Catriona Jamieson, director of the Sanford Stem Cell Institute and professor of medicine at the University of California, San ...

Research in space medicine has revealed various ways microgravity and other factors affect the human body during space missions. A recent study involving 24 astronauts from different space ...