美国国家航天局（NASA）警告：宇航员携带的微生物可能在月球极区存活

空间探测的一项重要任务是防止地球微生物污染其他天体。尽管太空环境恶劣，但科学家仍担忧微生物可能在月球极区的特殊地形中存活，从而干扰科学发现。

One of the primary objectives of space exploration that often gets overlooked is the intense effort that goes into ensuring Earth microbes don’t contaminate planetary objects, also called forward contamination. This is done to prevent contaminating any potential life that might be present could get killed off my Earth microbes and scientists don’t want to make false discoveries. While space radiation and extreme temperatures often kill off any pesky microbes that hitch a ride on spacecraft, there remains a longstanding knowledge gap regarding whether microbes could survive the lunar polar regions due to its deep craters and varying topography.