Alva Review-Courier -

By Marcia Dunn
AP Aerospace Writer 

After 9 months in space, mouse sperm yield healthy mice


CAPE CANAVERAL, Fla. (AP) — After nine months in space, mouse sperm has yielded healthy mice, Japanese scientists reported Monday.

The freeze-dried sperm samples were launched in 2013 to the International Space Station and returned to Earth in 2014. The intense radiation of space caused slight DNA damage to the sperm. Yet, following in vitro fertilization on the ground, healthy offspring resulted. The baby mice grew into adults with normal fertility of their own.

The researchers — led by Sayaka Wakayama of the University of Yamanashi — said it's a step toward reproducing other mammals...

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