Moss spores survive nine months in space, Pg9

Key Highlights:

• In March 2022, scientists exposed 20,000 moss spores to space outside the International Space Station for 283 days.
• Over 80% of the moss spores survived the space exposure and were brought back to Earth in January 2023.
• Of the surviving spores, all but 11% successfully germinated in the lab, demonstrating remarkable resilience.

Detailed Insights:

• Moss is known for its resilience and ability to colonize harsh environments on Earth, making it one of the earliest land plants.
• The moss spores survived due to multiple layers of spore walls that protect the reproductive tissue from space stresses.
• Mosses could potentially contribute to sustainable life-support systems in space by aiding in oxygen generation, humidity control, and soil formation.

Scientific/Technical Concepts Involved:

• Spores: Reproductive cells in plants like mosses, capable of developing into new individuals.
• Germination: The process by which a spore develops into a new plant.
• ISS (International Space Station): A modular space station in low Earth orbit used for scientific research.