Microgravity is disorienting, even for sperm cells. Some of the world’s wealthiest and most influential people remain deadset ...

A trip to space could very well leave human male sperm stumbling about in the dark, chasing their tails. Researchers at ...

It’s just like coach used to say: practice makes perfect. Recent research suggests that regular masturbation and/or sex can ...

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

Elon Musk's hopes of one day colonising other worlds might be nothing more than a pipe dream ...

Sperm could struggle to fertilise eggs in space, first study of its kind finds - Lack of gravity seems to make it difficult ...

A new study shows that lab-grown sperm cells can be derived from stem cells. July 9, 2009 — -- The face of infertility-- in literature, in the media, in advocacy groups -- is so predominantly ...

Researchers at Newcastle University in England report they have coaxed the first human sperm cells from embryonic stem cells, in a remarkable demonstration of how quickly the field of stem-cell ...

New work from UC Davis and the University of Utah shows how the 3D structure of DNA inside a germ cell commits it to develop into a sperm cell. The discovery could improve understanding of fertility ...

Sperm are produced continuously from puberty onwards and can be stored in the reproductive tract before ejaculation. That ...