Microgravity: Four medaka fish flew aboard Columbia in 1994 to test whether vertebrates could reproduce without gravity; they laid 43 eggs and eight baby fish hatched in space
The tank was kept at a water temperature of 24°C. The fish also followed a cycle of 14 hours of light and 10 hours of darkness. (Photo: JAXA) In July 1994, four small medaka fish travelled into space as part of an experiment that tested whether fish could reproduce in microgravity. The experiment was carried…