NASA finds Earth microbes could survive on the Moon
NASA researchers suggest that Earth microbes could potentially survive in shadowed lunar regions, posing a risk of contamination for future space missions. This finding emphasizes the need for strict protocols to distinguish human-introduced microbes from potential extraterrestrial life.
Why it matters
Preventing biological contamination is critical for the integrity of future searches for life on Mars and the Moon.
NASA scientists say some microbes carried into space by human explorers may be able to survive in sheltered, shadowed areas near the Moon's South Pole.
The findings, published on Aug. 19, 2026, in Science Advances , underscore the importance of understanding how long Earth microbes can persist in extreme lunar environments. As people establish a more permanent presence on the Moon, contamination from astronauts could make it harder for scientists to separate ancient lunar chemistry from material introduced by humans. Researchers say the same issue will matter when missions eventually search for signs of life on Mars.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in