In 1983, three pregnant guppies flew on Cosmos 1514 for five days; one later gave birth to 25 healthy fry and produced six more healthy broods after returning to Earth

In 1983, three expectant guppies journeyed aboard the Cosmos 1514 biosatellite as part of a Soviet experiment exploring the effects of microgravity on reproduction. Remarkably, one guppy gave birth to 25 healthy fry following the mission, demonstrating that later generations also thrived without any developmental issues. This groundbreaking research offered vital insights into the possibilities of reproduction in extraterrestrial environments.