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Japanese Study: Space-Proof Spores Could Support Life Beyond Earth

11/27/2025

Summary

Story summary

Researchers from Japan tested Physcomitrium patens in simulated space conditions and found its spores resilient.
After nine months outside the International Space Station, over 80% of spores survived and retained their germination ability.
UV radiation posed the greatest challenge, but the spores' protective structure let them endure extreme temperatures and vacuum.
The findings imply Earth-originating life could thrive in extraterrestrial environments, with results published in iScience.

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Story summary

Researchers from Japan tested Physcomitrium patens in simulated space conditions and found its spores resilient.
After nine months outside the International Space Station, over 80% of spores survived and retained their germination ability.
UV radiation posed the greatest challenge, but the spores' protective structure let them endure extreme temperatures and vacuum.
The findings imply Earth-originating life could thrive in extraterrestrial environments, with results published in iScience.