Scientists have used a tiny plastic "obstacle course" to test how much sperm would struggle to navigate during sex in the ...

University of Adelaide research shows sperm navigation fails in microgravity conditions, posing significant challenges for human reproduction in space.

Add Yahoo as a preferred source to see more of our stories on Google. Cancer cells are more hardy in the low-gravity conditions of space. koto_feja/iStock via Getty Images Plus As space travel gains ...

A new study by NASA scientists explores the risks and challenges of human reproduction in space, especially for long missions ...

As humans begin to colonize space, it's inevitable that some will suffer a cardiac arrest. Space CPR conducted in weightlessness will be crucial to save their lives -- and researchers say they've now ...

This story is part of Short Wave's series Space Camp about all the weird, wonderful things happening in the universe. Check out the rest of the series. What does it take to launch into space? Other ...

Dutch chemist Paul Poodt has developed two attractive alternatives for allowing protein crystals to grow under weightless conditions. If the crystals are grown upside down in a strong magnetic field, ...

The junior space cadet may scream out in the night as he dreams man’s ancient dream of falling through space, but he usually wakes up, at worst, on the floor, with nothing more than a slight bump. The ...

Space news and reference site. Last week I had a chance to re-enter a world few have visited – a realm only space travelers- astronauts, cosmonauts and the like – normally get a chance to enter.