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Healthy mouse pups born from freeze-dried sperm stored on the ISS for nearly six years.


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'Space pups' born from freeze-dried mouse sperm stored on space station

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In 2013, scientists from Japan sent samples of freeze-dried mouse sperm to live on the ISS -- and now they finally know how it affected them. Even after six-years of exposure to space radiation, the researchers say the space sperm still produced healthy pups.

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Frozen mouse sperm that spent 6 years in orbit used to conceive 8 healthy ‘space pups’