November 15, 2012

Advice to Astronauts: Freeze Your Sperm

Irene Klotz, Discovery News

AP Photo

Researchers have some advice for astronauts planning families after they return from long stays in space -- freeze your eggs or sperm before you go.

Studies on rats haven't sorted out whether it's the radiation, the impacts of microgravity on the hormonal system, or a combination of both that is responsible for damage to testes and ovaries during spaceflight and in ground-based experiments that simulate weightlessness.

Read Full Article ››

TAGGED: Eggs, Sperm, Radiation, Reproduction, Astronaut


October 12, 2013
Fish Have Oral Sex, Too... Kind of
Scicurious, Neurotic Physiology
When it comes to parenting, some animals will go the extra mile. Possums, for example, have their young clinging on as they trundle around. Kangaroos give birth to immature young that they keep in a pouch until it's bursting... more ››
October 15, 2013
'Gravity': What the Movie Gets Right & Wrong
Corey Powell, Out There
When you take a science geek to a science-fiction film, no good deed goes unpunished. Throw together a bunch of narrative nonsense linked by sheds of technobabble and the boffins will enjoy your movie as high camp (see The Core,... more ››
Science has come a long way since 1978, when Louise Joy Brown, the world's first successful 'test-tube baby', was born. Despite claims that these children were somehow going to be less natural, in vitro fertilization (IVF) has... more ››
October 12, 2013
Male Marsupials Die from Sex-Crazed Females
Hanna Rosin, Slate
There is a small mouse-like marsupial that lives in Australia, South America, and Papua New Guinea and that will die for love. In a brief and frenzied mating season, the males of this species will compete desperately for the... more ››