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Study Reveals Muscle Decline Risks for Mars Astronauts

3/28/2026

Summary

Story summary

A study on the International Space Station exposed mice to different gravity levels to assess muscle health, finding declines in muscle strength and size.
Professor Masafumi Muratani of the University of Tsukuba says the findings could indicate long-term changes for humans on Mars, including muscle and bone shrinkage.
Researchers are developing an astronaut digital twin to predict individual responses to space conditions and enhance mission safety.

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Story summary

A study on the International Space Station exposed mice to different gravity levels to assess muscle health, finding declines in muscle strength and size.
Professor Masafumi Muratani of the University of Tsukuba says the findings could indicate long-term changes for humans on Mars, including muscle and bone shrinkage.
Researchers are developing an astronaut digital twin to predict individual responses to space conditions and enhance mission safety.