In 2014, NASA sent young and older mice into space; within 9 to 11 days, the younger ones began running group laps in zero gravity

A groundbreaking NASA experiment with mice aboard the ISS shows how age affects behavior in microgravity, with young mice engaging in collective exercise while older mice remained inactive. The findings raise intriguing questions about the effects of space travel on physical movement and motivation, paving the way for further research in rodent behavior in space.

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