Mouse sperm thrived despite six years of exposure to space radiation
The findings suggest that long-term space travelers may still give birth to healthy children
![a group of mice that were exposed to space radiation](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/06/060921_mt_space-sperm_feat.jpg?fit=1030%2C580&ssl=1)
After being exposed to space radiation for three to six years on the space station, mouse sperm produced hundreds of healthy space pups (some pictured).
T. Wakayama/University of Yamanashi