Frozen sperm can survive space travel, preliminary study suggests

Spanish scientists have found that frozen sperm samples are still viable after exposure to simulated space flight, opening up the possibility of an space-based sperm bank.

The samples were then analyzed for concentration, motility, vitality, morphology and DNA fragmentation. Researchers found there was almost no difference between the control sperm on Earth, and the sperm which had been exposed to microgravity. The team will now move on to larger sperm samples, longer periods of microgravity, and using fresh rather than frozen sperm, she said.

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