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 ...

Having kids is a decision with a lot of gravity, literally. Scientists have found that sperm in space can’t find their direction during their pursuit to fertilize an egg. Such digressions could pose a ...

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 ...

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 ...

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 ...