On Earth human sperm tend to know where to go when it comes to fertilizing an egg in utero. But that may not be the case in space. A new study suggests human sperm may struggle to navigate in ...

A new study suggests that female astronauts may face a hidden risk of developing blood clots during space missions, highlighting the need for more gender-specific research in space medicine.

As plans for missions to Mars accelerate, so do questions about how the human body might cope. A return trip to the red planet would give more than enough time for someone to become pregnant and even ...

What happens to the human brain when the force of gravity is removed from the equation? New research is beginning to reveal that not only is space travel a challenge to the human body’s muscles and ...

Jeffrey Richards, a payload research and science coordinator on the LASSO contract at NASA’s Kennedy Space Center in Florida, prepares an experiment for a test in an Airbus Random Positioning Machine ...

The volunteers' blood samples were exposed to altered gravity conditions in parabolic flight. -- University of Barcelona Space travel has always tested the human body by the effects of the new ...

Add Yahoo as a preferred source to see more of our stories on Google. Sperm may be negatively affected by a lack of gravity, a new study shows. (Sperm and Embryo Biology Laboratory, Adelaide ...