ScienceCould alien life make us sick? The risks posed by microbes in space
Scientists say life beyond Earth is more likely to be microbial than humanoid. Some bacterial spores may survive in space for long periods, while spaceflight can potentially increase microbial virulence and suppress human immunity. Researchers are therefore concerned about bringing extraterrestrial samples back to Earth and contaminating other worlds with Earth microbes.
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BBC Chinese★★☆☆☆2026-09-23 00:29Original
Could alien life make us sick? The risks posed by microbes in space
Science