Scientists tested moss spores on the International Space Station for 9 months. When returned to Earth, over 80% of the samples reproduced normally. The discovery improves our understanding of how plants survive in extreme conditions, such as outer space. Researchers found that the protective casing surrounding the spores helped defend against UV light and dehydration. This success could pave the way for building ecosystems beyond our planet.
The moss species Physcomitrium patens (P. Patens) was tested in a special exposure facility attached to Japan’s Kibo module on the ISS. The samples endured extreme temperatures, microgravity, and high radiation exposure. When returned to Earth, most conditions had a limited impact on the moss spores. However, damage from UV light reduced pigments used for photosynthesis.
This study demonstrates that plant species can survive in harsh environments beyond our planet. The researchers’ findings could lead to further discoveries about how life forms adapt to extreme conditions.
Source: https://www.livescience.com/space/scientists-put-moss-on-the-outside-of-the-international-space-station-for-9-months-then-kept-it-growing-back-on-earth