A new study suggests that exposing astronauts to a diverse range of microbes from Earth could help them stay healthier during long-term space missions. Researchers found that the International Space Station’s sterile environment is actually detrimental to human health, and that introducing beneficial microbes could boost immune systems.
The ISS faces unique challenges, including microgravity and radiation that affect bodily functions. Astronauts have reported skin rashes, cold sores, and atypical allergies due to their altered immune systems. However, introducing diverse communities of microbes from soil and water could help mitigate these effects without compromising hygiene.
The study analyzed 803 surface samples from the ISS and compared them to thousands of samples collected on Earth. The results showed a lack of microbial diversity on the station, which is a significant concern for supporting astronauts’ immune functions. Researchers plan to assess potential risks before introducing new microbes to the ISS environment.
The study’s findings aim to guide future research that prioritizes astronaut health during extended space travel and colonization. By harnessing the power of beneficial Earth microbes, scientists hope to create safer and healthier space environments.
Source: https://www.space.com/space-exploration/missions/how-microbes-from-earth-can-help-astronauts-adapt-to-long-term-space-missions