The future of human reproduction in space just took a giant leap forward—thanks to some very small passengers.
Japanese researchers at Kyoto University have pulled off an audacious experiment: they cryopreserved mouse spermatogonial stem cells, shipped them to the International Space Station, left them in orbit for six months, brought them back down, thawed them out, and used them to create healthy offspring.
Yes, you read that right—mice conceived from stem cells that had been sitting in space freezers for half a year are alive and well.
Continue reading… “Space Babies: How Frozen Stem Cells Survived the Harshness of Orbit”