ISS Experiment Shows Moss Spores Can Survive Harsh Space Environment

Nov 24, 2025 - 20:00
ISS Experiment Shows Moss Spores Can Survive Harsh Space Environment
A hardy moss species survived 283 days on the outside of the ISS, enduring vacuum, radiation and extreme temperatures. More than 80% of its spores lived and germinated back on Earth. The findings reveal surprising resilience in early land plants and may support future Moon and Mars ecosystem designs.