Spanish scientists have discovered that frozen sperm samples are still viable after exposure to simulated space flight. The finding could pave the way for a space-based sperm bank.
The preliminary study was first presented at the European Society of Human Reproduction and Embryology in Vienna, CNN reported.
The samples, which were exposed to microgravity, were analysed for concentration, motility, vitality, morphology and DNA fragmentation.
"If the number of space missions increases in the coming years, and are of longer duration, it is important to study the effects of long-term human exposure to space in order to face them," Dr Montserrat Boada from Dexeus Women's Health in Barcelona said in a statement.