Scientists have found that sperm in space can’t find their direction during their pursuit to fertilize an egg.

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 ...

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 ...

NASA requests your comments on the scope and content of the solicitation “Space Biology Research Utilizing Microgravity Simulation Devices”. This solicitation may be released in the future as an ...

Under microgravity conditions, the sperm saw 'impaired directional navigation' - in other words, they got lost - more often than under typical gravity conditions on Earth.