International Space Station
Space Exploration & Science Missions
Human Spaceflight & Space Stations
NASA
ISS experiments show microgravity alters bacteriophage–bacteria coevolution, with crew health and biosecurity implications
Experiments aboard the International Space Station found microgravity reshapes coevolution between bacteriophages and their bacterial hosts: phages remain infectious but evolve along different genetic pathways in near-weightlessness, sometimes toward traits associated with increased potency. Results carry direct implications for crew microbiome management and spacecraft biosecurity.
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