The International Space Station has its own unique microbiome
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Bacteria aboard the International Space Station (ISS) are evolving new traits to survive in low Earth orbit, and some are showing signs of becoming increasingly virulent.
Microbes from Earth arrived on the space station through human hosts and through regular deliveries of equipment and supplies.
NASA has been monitoring the microbiome on the ISS for a decade to understand how microbes survive in the space environment and what threats they might pose to astronauts.
